bing tracking image
  1. Vehicle Suspension
  2. Chevrolet
  3. Silverado New Body
  4. 2007
  5. RAS
FITS 2007 Chevrolet Silverado New Body
RoadActive Suspension Custom Leaf Spring Enhancement Kit

RoadActive Suspension Custom Leaf Spring Enhancement Kit

Item # RAS4611
Our Price: $539.00
Vehicle Suspension
Confirmed to Fit
2007 Chevrolet Silverado New Body

1500

2500

3500 - Pickup

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

This item qualifies for Free Shipping
Shipping Weight: 27 lbs
Add to cart
In Stock
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Call etrailer.com at 1-800-940-8924 for expert service. We are your Chevrolet vehicle suspension experts, and offer a great price. etrailer.com carries a complete line of RAS products for your Chevrolet Silverado New Body 2007. RoadActive Suspension Custom Leaf Spring Enhancement Kit part RAS4611 from RAS can be ordered online at etrailer.com. Complete vehicle suspension installation instructions and technical support.
  • All Info
  • Reviews (729)
  • Q & A (0)
  • Photos

2007 Chevrolet Silverado New Body - RoadActive Suspension Custom Leaf Spring Enhancement Kit

  • Leaf Springs
  • Rear Axle Suspension Enhancement
  • Standard Duty
  • RAS

2,000-lb Capacity. Convert your Chevrolet Silverado New Body's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.


Features:

  • Custom kit converts your vehicle's factory leaf springs into a mechanically active suspension system
    • Actively strengthens leaf springs for improved ride quality with or without a load
  • All-in-one suspension system improves stability, handling, and control
    • Eliminates axle wrap, wheel hop, and bottoming out
    • Reduces dangerous sway and body roll while cornering
    • Keeps your ride level when towing or hauling a heavy load
    • Improves traction while breaking and accelerating
  • Variable-rated coil tension springs automatically adjust to your vehicle's load
    • Activate immediately to support the extra weight
    • Disengage when unloaded, allowing your leaf springs to perform as intended
  • Customizable coil springs can be adjusted during installation to accommodate your towing or hauling needs
    • Independently adjustable for side-to-side leveling of off-center loads
  • Helps extend the life of leaf springs, shock absorbers, shackles, and even tires
  • Durable, epoxy e-coated steel construction
    • Corrosion-resistant brackets on the ends of each unit have a salt spray rating of more than 800 hours
  • Easy, bolt-on installation - no drilling, cutting, or welding required
    • Unit secures under the leaf spring and around the factory U-bolts
    • Fully assembled kit and hardware are included
  • Maintenance-free - adjustments and monitoring aren't needed once installed
  • Made in the USA


Specs:

  • Weight capacity: 2,000 lbs
    • RoadActive Suspension will not increase your vehicle's weight-carrying capacity
  • 5-Year warranty
  • 30-Day money-back guarantee


All-In-One Suspension System

When towing or hauling a heavy load, you may encounter a number of problems that can make your driving experience difficult or dangerous, such as sway, body roll, or bottoming out. When your vehicle is weighted down, your factory leaf springs can't counteract these problems to the extent that they are supposed to. The weight will overpower the leaf springs and cause them to twist or flatten out. When that happens, they cannot support, level, or stabilize your vehicle effectively. Additionally, because your factory leaf springs are passive, they won't begin to tackle problems such as sway until those problems have already started.


Diagram of RAS Installed

RoadActive Suspension (RAS) kits enhance those passive leaf springs by converting them into a mechanically active, all-in-one suspension system. RAS kits have variable-rated coil tension springs that automatically adjust to your heavy load. Other suspension systems only solve a few problems and usually at the expense of other improvements your factory leaf springs may need. RAS, on the other hand, is a unique kit that provides everything you want in a suspension system without any trade-offs. It eliminates bottoming out like air springs, reduces sway and body roll like sway bars, keeps your ride level like helper springs, and improves traction and braking control like traction bars. This improves your vehicle's stability, handling, and control while you are towing or hauling, as well as when your vehicle is unloaded. RAS also makes your overall driving and towing experience safer and more comfortable, which greatly lessens driver fatigue.


How RAS Works

Close-Up of RAS Tension Spring

Each RAS unit has a powerful variable-rated coil tension spring that converts your passive leaf spring into a mechanically-active system. Once your vehicle is loaded, the tension springs immediately activate to absorb and support the weight. This allows your leaf springs to maintain their bowed position and keeps them from flattening out or flipping over, which greatly hinders their ability to bear a heavy load. The tension springs are variable-rated, which means that the heavier your load is, the more assistance they provide to your leaf springs. Because of this design, RAS reacts instantaneously, whereas hydraulics, air springs, and other suspension systems take time to react. And unlike your factory leaf springs, RAS stops sway and sag before they even start to happen. Additionally, when your vehicle is unloaded, the tension springs disengage, allowing your leaf springs to perform as intended without hardening your ride. RAS won't hinder your leaf springs' movement, nor will it cause any friction between any of the brackets.


Eliminates Axle Wrap and Wheel Hop

RAS Eliminates Axle Wrap

When under a heavy load, leaf springs are especially susceptible to axle wrap, which can cause wheel hop. Wheel hop is when the tires lose their grip on the road, causing a jarring, up-and-down movement. Axle wrap occurs when the circular motion of the tires cause the leaf springs to twist or rotate. If the leaf springs twist far enough, wheel hop can occur. RAS stabilizes your leaf springs by absorbing the force of the load they're trying to support. This eliminates axle wrap and wheel hop, as well as prevents your vehicle from bottoming out. Because of this, less strain is put on your vehicle. And by reducing some of this wear and tear, RAS helps extend the life of your leaf springs, shock absorbers, shackles, and even tires.


Reduces Sway and Body Roll

RAS eliminates sway and body roll

When driving along a curve while towing or hauling a heavy load, the back end of your vehicle or trailer can start to shift with that weight. If your factory leaf springs have flattened or twisted under this load, they won't be able to prevent it from shifting. Because of this, your trailer will sway away from your vehicle. This makes driving challenging and dangerous, as it increases the risk of body roll, which is when your vehicle drastically leans to one side. This can often cause you to completely lose control of your vehicle. Body roll is especially prevalent with multi-passenger vans and vehicles towing long campers, trailers, or boats. RAS provides a much safer ride by reinforcing your factory leaf springs and stabilizing your load. This helps prevent sway from occurring and reduces the chance of body roll while cornering, turning, and swerving. RAS also lessens the rocking motion that happens during windy conditions or when a semi passes by on the road.


Levels Your Ride and Improves Traction

RAS Levels Your Ride

When your vehicle is overloaded, the bulk of the weight transfers to the rear axle. Your factory leaf springs then become overwhelmed by this weight, as they are not strong enough to support it. This causes the back end of your vehicle to sag and the front end to rise, which means that the front tires have lost some of the grip they need with the road. In addition to loss of traction, it can also cause poor headlight aim, unintentional swerving, and an extremely bumpy and uncomfortable ride. RAS bolsters your factory leaf springs and enables them to provide support for your load without compromising ride quality or comfort. This keeps your ride level from front to back whether you are hauling a load in the bed or towing a boat, trailer, or camper. RAS also ensures that your tires have the traction they require while braking and accelerating, which improves the overall driving experience.


Customizable Coil Tension Springs

Adjusting Spring With Spacer

RAS is also customizable. During installation, the coil tension springs can be adjusted to 2 different tension settings or anywhere in between for improved road handling and support. To do this, rotate the springs while keeping the threaded rod still. As you turn the spring, use one of the 2 included spacers as a gauge to measure the widening gaps between the coils. In order for the RAS units to work as intended, you must tension the coils to a minimum of 25 percent with the 1mm white spacer and no more than 40 percent with the 2mm spacer. The springs can also be independently adjusted to compensate for off-center loads such as a handicap lift.


Easy, Bolt-On Installation

RAS Once Installed

This custom-fit kit comes fully assembled and is easy to install. Each RAS unit simply bolts onto your factory leaf spring with the included hardware, and drilling, welding, and cutting aren't required. First, position the eye hook bracket so that it wraps around the top of the factory leaf spring eye. Then the axle bracket secures under the leaf spring and around the factory U-bolts on the other side of the leaf spring pack. Once the maintenance-free RAS units are fully installed, you won't need to monitor them as you would with air springs.


Corrosion-Resistant Steel Construction

RAS Construction Close-Up

RAS is extremely durable and corrosion-resistant. The units are constructed of high-grade alloy steel, and they have an epoxy e-coat on the coil springs to provide extreme corrosion resistance. The brackets on the ends of each unit resist the effects of water and other elements, and they have a salt spray rating of more than 800 hours.



4611 RAS Custom Active Suspension System for OEM Leaf Springs - Rear Axle

Installation Details RAS4611 Installation instructions

Customer Satisfaction Score:


Customer Reviews

RoadActive Suspension Custom Leaf Spring Enhancement Kit - RAS4611

Average Customer Rating:  4.7 out of 5 stars   (729 Customer Reviews)

2,000-lb Capacity. Convert your vehicle's leaf springs into a mechanically active suspension system. RAS adjusts to your load to level your ride. The system also increases stability, handling, and control by improving traction and reducing sway.

by:

Overall, very happy with the product. GMC didn't have any way to improve the truck from squatting when I hooked up my trailer. This kit didn't stop the squatting but significantly reduced the bounce on bad dips in roads, bridge/road transitions and bad railroad crossings.

Michael

7/7/2023

Removed the Suspension Enhancement and installed Airlift. Cost more but rear-end isnt sagging 4.



by:
2011 Nissan Titan

The bed of the truck measured 37.5" with a tool box weighing 200 lbs. The truck felt weighed down with passengers weighing 600lbs. Total weight 800lbs with a tank full of gas. After the install the truck rides smoother and certainly " like new". The stopping distance and acceleration distance have shortened drastically. I'm planning on loading up the bed and the Roadmaster Active Suspension RAS4611. My wife even drive it and she could feel the difference. "It drives like a muscle car." Buy it. Install time at a reputable mechanic shop was a 30 min. Install. I received them today at 1 pm and got it installed at 3:00 pm and finished the install at 3:30pm. It's an investment worth the price over traditional air bag system. Mechanic installed this on 2011 Nissan Titan SV.

Sergio J.

8/13/2021

What can I say. After a year of constantly driving through Texas roads and highways. I have moved twice and loaded the bed of my truck plus U-Haul 6x12 trailer and thy truck has not felt the load of it. The Active Road Suspension Leaf Spring is constantly sort of speak sensing if theres load so it can actively push it upwards. I have even driven up to the crazy roads of Pennsylvania and my pick drives smoother than when I got it from the dealer. Im telling you these things work. As any cautious driver upkeeping his own vehicle, I have periodically checked the bolts and location of the resistance in between the spring and it has not deflected or moved from its original installation. I believe every pick up must have these. It beats constantly putting air on the air bags especially in inclement weather like up here in Pennsylvania with the snow. I couldnt be more satisfied with this purchase. Thank you etrailer for offering this superb product.

Sergio J.

8/16/2021

Just like when I bought it.



by:

I have a 2020 Silverado 1500 6 cyl Duramax with the Diesel Off Road package (3.73 diff). Travel trailer loaded is probably about 6,000 lb. I took several measurements during and after the spring kit installation. All measurements increased about an inch including the stock suspension with trailer and equalizer bars and with the spring kit installed at 1 mm spacing. A one inch improvement overall. I took the truck on a short drive and didn't notice any difference in ride (wasn't stiffer) which is what I wanted. Good to know that I can adjust the springs to the 2 mm spacing if I want to increase the suspension assist. Going camping next week and looking forward to see how it improves handling and porpoising.

Rick M.

3/27/2022

After a year I am still pleased with this product. I had been adjusting the spring tension higher when towing and then back down after a trailering trip, but now just leave it adjusted to the trailer towing tension as the unloaded ride doesnt seem to suffer when the springs are tighter.



by:
2021 Chevrolet Silverado

This system allows OEM ride in my 21 Silverado Z71 when a trailer is not being pulled. I have pulled an 8000 lb work trailer, and a 5000 lb travel trailer, with barely noticeable squat of the truck. This kit really seems to stabilize the back end when pulling a trailer. I'm very pleased.

Michael

1/18/2024

It still performs as advertised. Another benefit I have noticed is steering stability. The back end is not squatted down to where the front wheels are lighter on the pavement. Ive had many comments from my crew about it.



by:

Tha RAS Suspension Kit made towing way more enjoyable. Glad I purchased it.

Michael

3/5/2024

Still a great product! I just removed it from my truck, and will be going to airbags. We have been doing some longer hauls and would like something with a little better ride and control.



by:
2017 Nissan Titan

I installed this kit on a 2017 Nissan Titan and can be installed very easy. The handling on my truck has improved tremendously. I would recommend this product to everyone.

Bill

6/29/2019

When I installed it I set it up for 25 load and I pull a 9000 lb dry weight 5th wheel. The suspension kit is still doing its job.



by:
2007 Nissan Leaf

The RAS arrived on time and was super easy to install. It took my son and I about 45 minutes to install. It helps when you have all the right tools handy. The only thing I didn’t anticipate was the Allen wrench needed to reinstall the cross bolt in front of the leaf spring shackle. Fortunately, we had the right size on hand. So far so good. Haven’t had a chance to hook up to my RV yet. I’m optimistic it will take some stress off the leaf springs.



by:

So far looks pretty straightforward on installation. Can’t wait to install on truck! Will add another review after install and trip with travel trailer!!



by:
2008 Nissan Titan

I am on a Nissan titan 08. The roadmaster active suspension is really easy to install here for someone who has very little knowledge when it comes to stuff like this. I was able to do it on my own. I’ll write another review in a couple of months see how it works out here in the Coachella Valley California here we get to 123° weather sand storms so I’m gonna put it thru trials see how good it is.I own a landscaping company and I haul a lot of rock, and DG, boulders.



by:

I order these on Friday afternoon and I received them Monday afternoon. I had watched the clip on installation before ordering and it looked pretty easy. The installation instructions are very self explanatory and they were easy to install. From the time I starter until I had the tools picked up and put away it was about an hour and that was with taking a few phone calls. My initial ride after installing these was very good. I drove over a fairly rough road and tracks. My real test will come when I hook up to my trailer and load my tractor or car. I may have to readjust to a heavier setting but it is there if needed.



by:
2022 Chevrolet Silverado 1500

You van feel the difference right away. Gave my truck a little more height without a load. Truck feels more stable a turn/curve. I still have to put a load on it to check the differences. But, I imagine I won't have any problems based on everyone's else's reviews.



by:

The product does what it is advertised for its a little challenging to install by yourself but it definitional illuminated my squat issues when towing my boat and double axle trailer.



by:
Chevrolet Silverado

This is the second time I have installed these. I wouldn't be without them. They do do stiffen the ride a bit when I am running empty but it's not bad. Huge improvement when towing, the truck feels much more stable.Installation is straightforward,I spent more time jacking up the truck and removing the wheels than installing the springs. Installed on 2023 Chevy Silverado 1500.



by:

Has been a godsend since I installed the RAS. It makes towing our camper a lot easier and the rough roads smoother.



by:

I've attached two pictures regarding the items I've recently purchased and installed upon my truck from etrailer.com



by:
1997 Dodge Ram Pickup

I bought this based on I think the same product I bought several years ago for a 1997 Dodge Ram 1500. At that time, I bought a kit for for a Ram 2500 and was very impressed. I put a truck camper on the Dodge and I don’t think it settled an inch and when I drove it I hardly knew the camper was back there at all. No sway and no handling problems at all. This time I bought the kit for a Nissan Titan, pulling a 25’ travel trailer (about 7000#). The truck rear still settles and is not in a level attitude in transit without the weight distribution hitch. The suspension kit makes it better but not as much as I expected.

Jim

10/2/2019

Working just fine.



by:
2008 Acura MDX

ordered on tuesday arrived on friday Free shipping that was fast. Installed on Saturday morning. after I got the truck on the Jackstands took all if 20 minutes to install. haven't towed anything yet going camping this coming weekend will report more, truck rides better unloaded that before, great customer service



by:
2007 Chevrolet Silverado New Body

I installed these springs on my 2007 Silverado 2500HD that is used for towing a bumper pull horse trailer. With two or three horses in the trailer plus camping gear in the bed, the truck tended to squat more than I liked. These springs totally fixed that issue. I was concerned that they would cause a harsh ride when unloaded and not towing, but I honestly haven't noticed a difference.

To install the springs, the rear of the truck needs to be raised by the frame high enough for the axle to hang freely from the leaf springs. This would be easily done on a lift. It was a little tricky lifting it high enough in my driveway, but it was doable with a large jack and some tall jack stands placed under the forward leaf spring mounts.

To set the tension, I tightened them to the thinner 1mm shim, plus an extra turn or two. It seems to be fine for my purposes so I intend to leave them there.



by:
2011 Chevrolet Silverado

Install was effortless I set to 20% have not put under a load yet. purchased for added stability pulling my flat bed trailer with my tractor. body roll is definitely better thank you.



by:
2020 Chevrolet Silverado

The install was straight forward, no lift so it took a couple hours, no problems following written directions. Drove my 2020 Silverado 1500/Diesel around and didn't notice any significant change in the unloaded ride. Very happy with the product, we'll see how it performs when I get my RV behind it.

Larry

3/11/2023

Still a top notch product! Better ride on the freeway while towing, less bounce. Smooths out rough roads when not towing. Love it!



by:
Chevrolet Silverado 1500

Installed this on my 2020 GMC 1500 Denali. The one thing I hated about my Denali was how much a small amount of weight made it squat. The Denali is meant for smooth ride not towing! These springs brought the back of my truck up by an inch. Truck doesn't squat when being "exuberant" leavin red lights. Ride quality when empty hasn't changed. These springs are AMAZING but, are not a cure for all your hauling needs! When I'm hauling my 1800lb side x side on my trailer they work great! Hauling my 4500lb tractor... Load stabilizer hitch still recommended!



by:

I have had these for about a year installed at just a bit tighter than 1mm. I was very skeptical of their claim that they improve the unloaded ride quality, but it really was true. The best way I can describe it is that now the front and rear suspension feels about the same when I hit a bump.... right up until you cause enough travel to include the leaf springs. Then it gets stiff really quickly.

This works because when you install the RAS springs, they pull the ends of the leaf pack together almost like the rear suspension is drooping. This creates a bit of suspension travel that is only controlled by the leaf springs on the RAS. The RAS springs are softer than the leaf pack and as long as the bump doesn't exceed that range, the ride is very compliant. I really like it.

Ride improvement asside, I actually got this for towing my camper. I had a lot of up/down oscillations at the tongue when fully loaded on the highway. The RAS kit did help but hasn't eliminated it. At the Tampa RV show I spoke to the guy at the booth and he suggested I tighten the springs some more. I will do that before my next trip. I'm curious if that hurts the improved ride quality I have. I've also been told to add better equalizers or shocks to the trailer.

I occasionally hear some creaking from them when getting in or out of the truck or when loading the bed. It's nothing I'd ding the rating for, but they're not silent. I never hear anything from them while driving. I live on a dirt road and so far, I've not noticed that cause any issues.

Overall, I'm very happy with the product. I always thought the rear suspension was a little jarring unloaded and this smoothed that out while helping my suspension control heavy loads too. It really is the best of both worlds. I'm sure I'll put them on my next truck.


2015 Silverado Z-71
Equalizer 1k/10k WDH
2019 Grand Design Imagine 2600RB



by:

This product is amazing. I tow a 30ft trailer with my 1/2 ton truck and added these to it for greater stability and control. While it did not completely eliminate all bouncing, it greatly increased the handling and makes the suspension much firmer than it was without them. Also when not towing, the performance of these really shines though! No more rolling sensation while cornering and these really enhance the off-road rally performance of my Chevy Silverado Z71. The added benefit over helper springs is that these adjust to your ride based on the load you are carrying... Heavier load=stiffer ride, lighter loads=better overall handling performance.

Do note... If you are planning to use a 1/2 ton to tow heavy loads, addressing the suspension is only one part of the battle. You also need to consider adding a transmission cooler to ensure you don't overheat your engine. All in all, these were the first addition I made to my truck to improve its towing performance and increase my confidence hauling weight. The benefits were immediate and installation is easy enough for just about anyone with a little DIY tenacity.



by:
2015 GMC Sierra

This set up really helped my travel on my 2015 SLT Sierra 1500. I pull a 6,000 pound fish house around in the winter and it reduced the sway I had by about 80%. Plus, my truck didn't sag as much. Great product and worth the money, in my opinion.



by:
2020 Nissan Titan

I don't like how they raised the back of the truck. And I dont think they do a good job on helping the truck sage when attaching my traveler trailer.

Note I will let them on the truck for now but, I will look at other products to replace them.


25
728
Show More Reviews

See what our Experts say about this RAS Vehicle Suspension

  • SumoSprings or Timbren Rear Suspension Enhancement For 2021 Chevy Silverado 1500
    For your 2021 Chevrolet Silverado 1500 that you use to tow a trailer I recommend going with the Sumo Springs # SS45FR. These helper springs offer 1500lbs of load leveling support which will be plenty for towing a trailer as the suspension of your truck is only supporting the tongue weight of your trailer. I do not recommend using Timbren Suspension Enhancement as they are made out of a much stiffer material and are known for causing a very stiff unloaded ride. Now the # SS45FR is designed...
    view full answer...
  • 2021 Tundra TRD Pro Spring Enhancement Kit For Increased Stability and Reducing Squat
    If you're already using a weight distribution system and are still experiencing squatting then you may want to check to ensure you have the proper weight distribution system for your trailer. I recommend going back and making sure the system has been set up properly. You should also check your trailers fully loaded and ready to tow tongue weight, which should include the weight of anything in the truck bed behind its rear axle. You'll want to check that this weight isn't more than the tongue...
    view full answer...
  • Will RoadActive Suspension Change Ride Height on 2021 Sierra 1500 With 2 Inch Factory Lift
    The # RAS4611 RoadActive Suspension Kit is a confirmed fit for your 2021 GMC Sierra 1500 AT4. This works with your factory 2 inch lift. These springs are customizable and may be adjusted during installation. They also automatically adjust to your vehicle's load. They only down side here is they may increase the height of your vehicle which is what you have asked to avoid. According to RoadActive, most vehicles fall into the range of gaining 1/16" to 1-1/2" lift. It is hard to determine...
    view full answer...
  • Suspension Enhancement Kit that Fits 2005 Chevy Suburban 2500
    Yes, the SuperSprings kit part # SSA5 is a pair of springs and it comes with all mounting hardware needed to install it. However this kit does not fit your 2005 Chevy Suburban but we do have a similar setup that does with the Roadactive kit part # RAS4611. This would have been my first choice for you even if there was a SumoSpring that fit since this kit provides best support and improves handling and ride quality unlike all other options.
    view full answer...
  • Suspension Enhancement Recommendation for 2019 GMC Sierra 1500 Elevation
    The best suspension enhancement for your 2019 GMC Sierra 1500 would be the RAS kit part # RAS4611 as this gives you the support you are wanting, improves ride quality and handling, and does not require the same amount of maintenance as an air bag kit. You can use these kits with a weight distribution system as well like the Reese Strait Line part # RP66084 which has a tongue weight range of 600-1,200 lbs and features a sway control that works to fight sway before it starts.
    view full answer...
  • Does Install of RoadActive Suspension System Require Adjusting Weight Distribution System
    Yes, if you install a RAS kit like # RAS4611 or any other suspension enhancement to a vehicle you will need to adjust the amount of spring bar tension in the weight distribution system. Basically what you will need to do is first set the amount of support you want from the RAS kit and then re-set up the weight distribution system. You will end up finding that you need less spring bar tension to level the tow vehicle.
    view full answer...
  • Suspension Enhancement for 2004 Chevy Silverado with 2 inch Lift Kit
    For your 2004 Chevy Silverado that has a 2 inch lift your best option for suspension enhancement is the RoadActive Suspension kit part # RAS4611 which fits easily on trucks with lifts, provides the best adjustable suspension support, installs easily, and improves handling and stability when loaded and unloaded unlike other options. There isn't a way to install the SumoSprings you mentioned on a truck with a lift.
    view full answer...
  • RAS4611TD or RAS4611 For 2002 Toyota Tundra
    For a 2002 Toyota Tundra the correct RoadActive Suspension kit is the part # RAS4611 as the # RAS4611TD is for newer Tundras that were made in 2007 and after. I verified this with RAS too to make sure it was still correct.
    view full answer...
  • Can RoadActive Suspension RAS3611 Be Moved from 2019 Silverado 1500 to 2022 Silverado 2500
    Unfortunately, because the leaf springs on your Silverado 2500 are wider (2-1/2 versus 3 inches wide) than those on your older 1500 which means that your # RAS4611 won't fit on your new truck. For your 2022 Silverado 2500, you'll want to use # RAS3611-HD if your truck doesn't have top overload springs or part # RAS3611-CHD if it DOES have top overload springs.
    view full answer...
  • Will The RoadActive Suspension RAS4611 Fit a 2019 GMC Sierra With a Factory Ride Hight Sensor
    I spoke to one of the Techs over at RoadActive Suspension and the Leaf Spring Enhancement Kit # RAS4611 should fit without issues. He mentioned the sensor in question being on a bracket that sits over the leaf springs higher than these will sit. I included an install we did with these on a 2013 Silverado as well. This one doesn't have the ride height sensor, but will show exactly where the # RAS4611 will sit on the springs.
    view full answer...
  • Which Roadactive Suspension Kit Fits 2021 Nissan Titan P4X
    Whenever available we recommend going with the HD option part # RAS3611-HD even though it does cost a little more. The additional capacity even when not necessarily needed allows it to provide the additional support without having to be cranked down as much which gives it a better ride quality and room to grow in case you decide to tow a heavier trailer in the future. For you you may not see a huge difference in ride quality but it is still the way to go. Essentially the other options...
    view full answer...
  • Air Bags Hit Exhaust Pipes on a 1994 GMC K1500
    The Firestone Ride-Rite Air Helper Springs part # F2025 is designed to work on a 1994 GMC K1500 with the factory exhaust. If you have an aftermarket exhaust that is interfering with the airbags which it sounds like is the case then you will need to make some adjustments to your tail pipes in order to make the two work for you. If you don't want to modify your exhaust then you can look into the RoadActive Suspension part # RAS4611 which would serve the same purpose as the Firestone Ride-Rite...
    view full answer...
    Image 1 for
  • Recommended Suspension Enhancement for 2011 Nissan Titan Towing a Travel Trailer
    You only need to use one suspension enhancement on your 2011 Nissan Titan; multiple systems would be unnecessary and, frankly, a waste of your hard-earned money. As for your question about capacity, suspension enhancements will not increase the load capacity of your TItan, it is the amount of weight on your truck's axle that the system can handle and remain effective. Weight capacity is one of the ways to decide which system to use, as is the benefits of the system when you are not towing,...
    view full answer...
  • Selecting RoadActive Suspension or Equal-i-zer Weight Distribution For a 2014 Chevy Silverado 1500
    The capacities on the RoadActive Suspension Custom Leaf Spring Enhancement Kits 2,000LB # RAS4611 and 3,000LB # RAS54FR are the maximum amount of weight these kits are rated to support. In terms of your 6,000lb trailer typically 10-15% of the trailer weight rests on the tongue so you would see around 600-900lbs of tongue weight. For this the 2,000LB # RAS4611 would be the best option of the 2 kits to use. Personally I recommend using the Equal-i-zer Weight Distribution System # EQ37100ET....
    view full answer...
  • Best Suspension Enhancement for 2016 Chevy Silverado 1500 Towing Trailer
    If you are looking for the best suspension enhancement for your 2016 Chevy Silverado 1500 to provide additional support when towing a trailer you'd want the RoadActive Suspension kit part # RAS4611. The reason this is the best option is that it gives you the support you are wanting, improves stability when towing, and also improves ride quality whereas the other options are going to make the ride quality rougher and not offer the same improvements in handling/stability. If you were going...
    view full answer...
  • RoadActive Suspension Kit for 2005 Chevy Silverado 1500 that is Lowered
    Yes the RoadActive Suspension kit part # RAS4611 does fit your 2005 Chevy Silverado and would work great with the lowering components your truck has installed. It will do a great job giving you the additional support you are looking for as well.
    view full answer...
  • Will the Active Suspension Custom Leaf Spring Enhancement Kit Work with Airbags?
    I confirmed with RoadActive Suspension that the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611 will fit with your fifth-wheel hitch. This system is an all-in-one suspension system that improves stability, handling, and control. It also eliminates axle wrap, wheel hop, and bottoming out. It will help you eliminate torque hop and give you more recovery over large bumps. As far as the compatibility of the Leaf Spring Enhancement kit and an airbag, the Air Lift LoadLifter...
    view full answer...
  • Will SumoSpring Custom Helper Springs Fit A 2021 GMC Sierra 1500 AT4
    Your 2021 GMC 1500 AT4 has a 2 inch lift so the Sumo Springs like The SumoSprings Solo Custom Helper Springs # SS45FR wouldn't work correctly unless you're experiencing a lot of sag while hauling a heavy load. These sumo springs already require some sag before they start working properly, so your vehicle's additional lift will increase the distance the need to move before they start to work. Instead of Sumo Springs I recommend The RoadActive Suspension Custom Leaf Spring Enhancement Kit...
    view full answer...
  • Suspension Enhancement to Fit with Adaptive Ride Control on a 2020 GMC Sierra 1500
    The Timbren kits aren't compatible with the GM Adaptive Ride Control, but I do have an alternate solution for your 2020 GMC Sierra 1500 with the RoadActive Kit: RoadActive Suspension Custom Leaf Spring Enhancement Kit - # RAS4611 Not only is this compatible with the Adaptive Ride Control, but it's also adjustable so you can get different ride qualities out of it. Just like the Timbren kits, the RoadActive doesn't have have a maintenance schedule other than check it from time to time to...
    view full answer...
  • What Rear Suspension Do You Recommend for My 2021 GMC Sierra 1500?
    For a rear suspension system for your 2021 GMC Sierra 1500 when continuously hauling heavy loads, I recommend the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611 (2,000 pound weight capacity) or # RAS54FR (3,000 pound weight capacity). The weight capacity of these two kits depend on whether you plan to haul more than 2,000 pounds. If you will exceed 2,000 pounds, I recommend the # RAS54FR. Both of these spring enhancement kits will work with 2-wheel or 4-wheel drive....
    view full answer...
  • What is the Warranty on the RoadActive Leaf Spring Enhancement Kit?
    I'm sorry to hear about your springs! Unfortunately, with the RoadActive Suspension Custom Leaf Spring Enhancement Kit like part # RAS4611, any warranty request must go through the manufacturer (RoadActive). For this particular kit, it is covered by a 5-year. If you bought the springs within 5 years, they should honor a replacement if it fits their requirements. We unfortunately cannot provide a discount. However, if your springs are older than 5 years, the only option is to replace the...
    view full answer...
  • Will the RoadActive Suspension Fit a 2019 Chevy Silverado 1500 Trailboss
    Yes, the RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS4611 is a confirmed fit for a 2019 Chevrolet Silverado 1500 Trailboss.
    view full answer...
  • Weight Distribution System to Reduce Rear Sag in 2012 Chevy Suburban Towing Camper
    If you already have the RoadActive Suspension system # RAS4611 installed in your 2012 Suburban and you still have rear sag when your camper is hitched I recommend using a weight distribution/sway control (WD/SC) system if you do not already have one. You could add Timbrens but WD is a better option. Weight distribution will do more to level the Suburban and eliminate the rear sag than adding a set of Timbren jounce springs since WD/SC systems actually shift trailer tongue weight forward...
    view full answer...


< Previous
123. . .7



Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Kathleen M
Video by:
Kathleen M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Randy B
Test Fit:
Randy B
Employee Kevin C
Test Fit:
Kevin C
Employee Mary K
Written by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Matthew E
Updated by:
Matthew E
Employee Noah M
Updated by:
Noah M

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.