bing tracking image
  1. Vehicle Suspension
  2. RAS
  3. Leaf Springs
  4. Rear Axle Suspension Enhancement
  5. Heavy Duty
RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty

Item # RAS3611-HD
lowest price pledge
Our Price: $569.00
Vehicle Suspension

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: 30 lbs
Quantity: 
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

Customer Photos

Videos

Need help with installation?
Locate installers near me
3,000-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. Lowest Prices for the best vehicle suspension from RAS. RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty part number RAS3611-HD can be ordered online at etrailer.com or call 1-636-306-4830 for expert service.
  • All Info
  • Reviews (499)
  • Q & A (0)
  • Photos
  • Why etrailer?

RAS Vehicle Suspension - RAS3611-HD

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

3,000-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.


Features:

  • Heavy-duty 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: 3,000 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.



3611-HD RAS Custom HD Active Suspension System for OEM Leaf Springs - Rear Axle

Installation Details RAS3611-HD Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty - RAS3611-HD

Average Customer Rating:  4.7 out of 5 stars   (499 Customer Reviews)

3,000-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:

Total transformation! I never knew how bad my ride was until I installed these RoadMaster 3611-HD active suspension. It took longer to safely jack my truck up and remove tires than it was to install them! Absolutely a game changer. I carry about 1000 lbs of tools and supplies daily and like riding a Rollercoaster when hitting bumps. Now, i hit bumps on purpose just to feel these RoadMasters work their magic! Love them!


Comments
After a year of use , these RoadMaster 3611-HD active suspensions are still the best addition to my trucks performance. The streets of Houston are brutal and these active suspension breeze through them. I have 354000 on this truck and if I ever get another, this Active Suspension will be the first addition. Hands down!
Tracey T - 04/29/2022


by:
2017 GMC Sierra 1500

Admitedly, I haven't even rolled my '07 Silverado 2500HD classic out of the garage yet, but I'm already very pleased. I had to go to a neighbor for a 10mm hex key socket and was slowed down by my 7yo kid 'helping', but it was still only 90 minutes my jack stands were in use. Easiest thing to do!
My only small downsides so far:
* needed to find a 10mm hex key that I apparently don't own, not sure why they picked that fastener
* wish I put some loc-tite on; just to make me feel better
* distance to drop the axle so the suspension fully hangs was way further than I expected; barely had my jack stands tall enough to get the job done.

These aren't really bad on the product, just notes for future customers. We're towing the 5er about an hour an a half this coming week, hopefully it steadies up a lot!




by:

This is my 2nd set of RAS! Just purchased for towing in my D-Max 2500HD. 1st set we’re on a Chevy 1500. I tow a 7000lb 259FKDS Freedom Express bumper pull and having the RAS-HD’s installed is night and day difference in towing. I have them set at 40% because of my cargo in the truck bed and tongue weight. I’m set up right now as I type on a 100 mile camping trip to set the springs and readjust if needed! So I say….”if you need support with towing, give RAS3611-HD a try…you won’t be disappointed with the results”




by:
2010 Nissan Leaf

Silverado 2500HD
Ready to install out
of the box. Simply extend the RAS out to become the proper length (shortened for shipping), remove the bolt to allow the fork to drop over the leaf spring and reconnect, hand tighten the assembly via turning the spring and check the "centered alignment", then tighten with a wrench (my socket wouldn't quite fit) until gap disc slips freely between the expanded spring. Took me longer to prep truck on a jack and two axle stands/remove tires for improved accessibility than the actual RAS installations.

Added 1 inch of lift "empty weight". Will see how much squat is removed under load of our travel trailer this weekend!

I'm not very mechanically inclined, and found this very easy to self-install - a level 1 project.

NOTE: etrailer customer service also took their time w/ me over the phone to ensure I had ordered the proper kit for my vehicle, and although my order was sent to the vendor for direct shipment, I got it to Alaska in less than 10 days.




by:

These are so much easier to install instead of air bags and easy adjustments and you don't have to worry about airlines leaking and say your out on the road miles from anywhere and you blow a airbag or a airline now what? With the Roadmaster suspension you don't have to worry.I put them on my F350 7.3 with a 1997 lance inbed camper in the back one of the heavy ones fully loaded and what a difference it's will start to lean in a corner but comes right back up with no more swaying back and forth. I feel the price is a little high compared to some airbag kits but it only took me an hour to install the Roadmaster suspension. Make sure you follow the instructions or watch a video you need to make sure you have all the pressure of your rearend leaf springs I put jackstands under the frame just in front of my leaf springs.




by:

I like the fact that these devices are active instead of passive-They're always engaged. However, the bracket that holds these on the truck is in the same spot that my airbag was connected. I could not figure out a way to keep the air bags. In hind site, because I carry a camper, I would rather have the airbags.




by:
Ram 2500

It took more time to get the truck lifted and ready to work on than to put these on. Simple and effective. They raised the back of my GMC 2500 Denali only about 5/8" and are very smooth driving unloaded. I'll get a chance to see how they do with my fifth wheel in a couple of weeks. Definitely worth the money and time so far!




by:
2017 Chevrolet Silverado 2500

Excellent Improvement! Bought a new 5th wheel that is right at the rear axle load rating for my 2500 Silverado. Towing, I noticed a distinct "wallowing" feel that wasn't there with my previos lighter 5th wheel, which requied a constant minor streering adjustment going down the road. Added the active suspension at the higher setting. Immediately noticed a smoother less stiff ride unloaded, and then with the trailer the "wallowing" was gone and the truck was back to tracking straight and true. Great investment and I am super pleased with the purchase!




by:
2005 Chevrolet Silverado

If you want to get these go directly to roadmaster website. Nothing but problems from etrailer. They sent out 1 spring that looked used. After calling they sent out the other spring. Looks new. Still waiting for the directions and 1mm and 2mm adjustments disks.




by:

Great improvement for towing my 34’ travel trailer.




by:

I am very happy with the system. Does exactly what it says it will. I pull a 38' 5th wheel and it would cause havoc with the stock springs. I put these on and noticed an immediate improvement to the bounce while towing my camper. Very easy install. Thanks I would purchase again if I replace my current truck.




by:

Excellent product, easy to install. I’m pulling a 38’ Grand Design travel trailer with a Silverado 2500 diesel. It eliminated any sag and makes the truck handle better. Would highly recommend




by:

Helps when pulling 14,000 loaded trailer with my 3/4 ton Silverado




by:
Roadmaster

did not want to worry about air bags so I tried roadmaster active suspension. gained about 3/4" of height when my 5th wheel is loaded on truck. now my truck sits perfectly level while going down the road.[no more flashing of high beams in my face]. they have been on the truck for 20,000 miles so far with no issue.




by:
2022 Chevrolet Silverado 2500

Would have liked to of gotten it sooner nevertheless I understand that these things happen but your guys is service is always outstanding And you’re always there for all the questions that I have and everything I purchased from you through the years thank you




by:

Had a set of these on my last toe vehicle. Huge difference in how it sits when hooked up.




by:
Roadmaster

The service was excellent. I ordered my roadmaster active suspension on Wednesday and it was delivered to my house by noon the following Friday. I will order from etrailer again for future needs.




by:
2022 Ram 2500

Made my truck sit level and improved rear end sag when pulling heavy equipment with my 2022 Chevy 2500.




by:

Works great and easy to install




by:
2011 Chevrolet Silverado

Great fit will tow my camper Friday




by:

Great company very intelligent staff knew exactly what I needed




by:
Ram 2500

Very easy install, the directions are great. Made a bit of a difference on the truck ( 2021 GMC 2500 Duramax AT4) I’ll know better when I hook up the 5 th wheeel.




by:

Love the extra lift this suspension gives for when I haul my fifth wheel.




by:

It works well, after putting it on, the truck settled 1 inch versus 3 inches before. it makes for a level ride.




by:


Comments
Great, no issues. Still keeping me stable and level with or without my 5th wheel RV connected.
Bryan - 08/24/2022

25
501
Show More Reviews

See what our Experts say about this RAS Vehicle Suspension



  • Will the RoadActive Suspension Kit Part # RAS3611 Increase Payload Capacity
    No, the RoadActive Suspension Kit part # RAS3611 will not increase either the payload or towing capacity of your 2015 Chevrolet Silverado 2500 as with all of our suspension enhancements. They will work to help take some of the stress off your existing components by stiffening the leaf springs. This will in turn help to improve handling, stability, and vehicle sag. The above kit has a weight capacity of 2,000 lbs which in the case of your 5th wheel trailer would be pin weight. If the pin...
    view full answer...
  • Recommended RoadActive Suspension for 2017 Chevy 2500HD Diesel Towing 13,000 Pound Trailer
    The 2,000 pound standard RAS for your 2017 Silverado 2500, part # RAS3611, is going to be enough to help you tow your 13,000 pound Keystone. If you're only towing the trailer a few times a year this is the route I would go. If you're towing a lot more often then that the HD system, part # RAS3611-HD, is the way to go.
    view full answer...
  • Suspension Enhancement Kit Recommendation for 2016 GMC Sierra 3500 Towing Fifth Wheel Trailer
    The Roadmaster Active Suspension Kit part # RAS3611 would be a great suspension enhancement setup for your 2016 GMC Sierra 3500. You would not need air bags on top of these. Since these will give you the additional support you need the air bags would be redundant.
    view full answer...
  • RAS3611-HD for 2017 Nissan Titan XD Trim Level S
    I would not recommend the part # RAS3611-HD for your 2017 Nissan Titan XD. This kit is designed for heavier duty vehicles so it would make your suspension harsh. The part # RAS3611 is the correct kit you'd want. It will give you the suspension support you want and won't make the ride harsh. The roller does have to be permanently removed though. I attached a picture that shows that step of the instructions for this kit. The roller has to be removed so that the spring of the RAS can lay...
    view full answer...
    Image 1 for
  • Difference In Ride Quality Between RAS and Heavy Duty RAS on 2022 Chevrolet Silverado 2500
    When it comes to comparing the ride quality between the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611 and RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-HD it is likely you won't notice much of a difference at all. Since the RAS system is adjustable, you can always make changes if you think the ride is a little stiff. It is likely you won't need to though. For that reason, I would choose the # RAS3611-HD for the extra capacity and...
    view full answer...
  • RoadActive Suspension Kit for 2002 Ford F-250/350
    The correct RoadActive Suspension Custom Leaf Spring Enhancement Kit for your 2002 Ford F-250/350 is the part # RAS3611 for the Standard Duty or # RAS3611-HD for Heavy Duty, which offers an extra 1,000 pounds of capacity. I don't believe there is a part number stamped onto these units so what you can do is compare the used set you're looking at with the images we have of these on the product pages or even send me a picture directly and I can try to verify. If you want to be safe though...
    view full answer...
  • What Suspension Enhancement do You Recommend for My 2021 Chevy Silverado 1500?
    If you are planning on hauling heavy loads often, I recommend leaf spring enhancements like the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611 (2,000 pounds) or # RAS3611-HD (3,000 pounds). Unlike springs or air bags, the leaf spring enhancement kit will influence the longevity of your current leaf springs as well as give you the load support you need to improve ride quality and prevent sagging. Also, you get the benefit of this being a maintenance-free system after...
    view full answer...
  • What Can I Use to Reduce the Sag on My 2020 GMC Sierra 2500HD with a 42 Fifth Wheel Trailer?
    The best product to use to prevent sagging on your 2020 GMC Sierra HD while pulling a 42' fifth-wheel trailer is the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS3611 (2,000 pound weight capacity) or the # RAS3611-HD (3,000 pound weight capacity). The reason why these are the best is because they will help your truck's sag, improve it's handling, won't negatively affect your unloaded ride, is simple to install relative to other options, and requires no maintenance whatsoever. In...
    view full answer...
  • Correct RoadActive Suspension Kit for 2001 Ford F-350 Super Duty
    Yes, the correct RoadActive Suspension Heavy Duty kit for your 2001 Ford F-350 Super Duty is part # RAS3611-HD, which fits single and dual rear wheel models regardless of cab size. Just note that if your truck has factory overload springs (located above the pack of leaf springs), they must first be removed before the kit can be installed The HD kit is best for trucks that typically experiences squat of +2-3 inches when loaded and/or trailer has a tongue weight of 600 lbs or more. It features...
    view full answer...
  • Differences Between the RoadActive Suspension Systems For a 2022 GMC Sierra 2500
    There are currently 3 kits available for your 2022 GMC Sierra 2500. The correct kit will depend on the leaf springs under your Sierra and the amount of sag you are experiencing. Do note that none of these systems will increase your payload or towing capacity. They will only provide assistance to your factory suspension giving you a more level and safe ride. The first kit is the RAS System # RAS3611. This system is rated for a capacity of 2,000lbs and works best with trucks that squat...
    view full answer...
  • Recommended RoadActive Suspension Kit For A 2022 GMC Sierra 2500 With An In Bed Camper
    Though it will ultimately depend on how much your camper weighs and how much sag you experience, there are a few differences between the 3 options available for your truck. First is the # RAS3611. This will have a 2,000 pound weight capacity and will be used in mild to moderate cases of sagging. With you having a Sierra 2500, I assume you will have a pretty heavy camper in the bed, so this may not be the best option. With that said, we come to the # RAS3611-HD and # RAS3611-CHD. These...
    view full answer...
  • Recommended Suspension Enhancement for 2022 Chevrolet Silverado 2500 Towing a Horse Trailer
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit will be a great choice for your 2022 Chevrolet Silverado 2500. Since you're going to be towing a heavy horse trailer, I recommend using the heavy duty kit # RAS3611-HD instead of the the # RAS3611. The RAS system turns your vehicle's factory leaf springs into a mechanically active suspension system. Not only will this improve stability and control, it will also help prolong the life of your leaf springs, shocks and tires. This...
    view full answer...
  • Will RoadActive Suspension Raise the Height of a 2000 Ford F-250
    Installation of the RoadActive Suspension system # RAS3611-HD will not increase the unloaded ride height of your 2000 Ford F-250. When loaded if the truck were to normally squat the RAS will prevent that from happening.
    view full answer...
  • Will RoadActive Suspension Kit Increase Hitch Capacity of 2009 Ford F-250
    The RoadActive Suspension Kit # RAS3611-HD referenced in your question is confirmed to fit your 2009 Ford F-250, as long as it does not have the factory top overload springs. This heavy-duty kit will do a much better job of supporting the truck's capacity compared to the factory suspension, but it will not actually increase the hitch/tongue weight capacity of your F-250. This is the case with any aftermarket suspension enhancement system. Generally speaking, no aftermarket products will...
    view full answer...
  • RoadActive Suspension Kit Recommendation for 2015 Chevy Silverado 2500HD
    For your 2015 Chevy Silverado 2500HD we have the RoadActive Suspension kit part # RAS3611-HD as a confirmed fit. This will give you an additional 3,000 lb of suspension support which will greatly reduce the sag you are still seeing.
    view full answer...
  • Recommended Suspension Enhancement System For 2016 Chevy Silverado 2500 With Future Lift
    On your 2016 Chevy 2500 Duramax Crew Cab Standard Box, the RoadActive Suspension Kit # RAS3611-HD will be a great addition. It will work on your truck even if it doesn't have the factory overload spring. This kit will have a 3,000 lb capacity which means it will function correctly up to that weight capacity, but it does not increase the weight carrying capacity of your factory suspension system. It has a patented design that eliminates bottoming out, axle wrap, wheel hop, and greatly...
    view full answer...
  • Recommended RoadActive Suspension for a 2015 GMC 2500
    With your 2015 GMC Sierra 2500 not having the overload springs on the top, the RoadActive Suspension # RAS3611-HD will be the correct ones for you.
    view full answer...
  • Will the RoadActive Suspension RAS3611-HD Fit a 99 F-350 Dually with Top Overload Springs?
    The RoadActive Suspension # RAS3611-HD will definitely fit your 1995 Ford F-350. This includes models with dual rear wheels. However, installing this will require permanent removal of the top overload springs as this will essentially replace them. This will also supplement your stock suspension very nicely and should help with ride quality and towing experience.
    view full answer...
  • Will Air Bags Work On a 1997 Ford F-350 with 5th Wheel/Gooseneck Brackets
    I do have an option for you but you can't use air bags on a 1997 Ford F-350 with fifth wheel or gooseneck hitch brackets, they both mount in the same spot. Instead, I recommend RoadActive Suspension Custom Leaf Spring Enhancement Kit part # RAS3611-HD which are bolt-on and they can be adjusted for any given load. They don't require maintenance like air bags but the adjustment process is not as easy albeit.
    view full answer...
  • Will a Suspension Enhancement System fit a 2015 Chevy 2500 HD long bed crew cab with 6 of Lift
    I did contact RoadActive and the Active Suspension Custom Leaf Spring Enhancement Kit # RAS3611-HD is confirmed to fit and does not require additional parts to install. These suspension enhancement systems are designed to fit stock vehicles, without any aftermarket suspension modifications. Regarding lifted trucks, an issue may arise if the lift block is fabricated in an odd shape that interferes with their axle connecting brackets that are part of the kit. Another scenario that's...
    view full answer...
  • Is RoadActive Suspension Kit Compatible With Leveling Kit on 2021 Chevrolet Silverado 2500
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-HD will work with the leveling kit on your 2021 Chevrolet Silverado 2500. They install on the top of your leaf springs and converts them into a mechanically active suspension system. This kit will improve stability, handling, and control. It will also help to extend the life of your leaf springs and shocks. It also has a bolt-on installation and a 5-year warranty. I have attached a video review for your...
    view full answer...
  • Ride Height of 2022 Chevrolet Silverado 2500 With Installation of RoadActive Suspension Kit
    The RoadActive Suspension Custom Leaf Spring Enhancement Kit, # RAS3611-HD is confirmed to fit the 2022 Chevrolet Silverado 2500, both 2 wheel drive and 4 wheel drive. Installation will not cause the truck to set higher when under load and interfere with fitment of your 5th wheel hitch and RV. 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...
    view full answer...
  • Will RoadActive Suspension Heavy Duty Kit Work On a 2016 GMC Sierra Denali 2500
    Thank you for the picture! The overload spring that the RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-HD is referring to is located on top of the leaf spring pack. Based on the picture you provided, you will be able the install the RoadActive Suspension # RAS3611-HD with no problems. I included a video of the RoadActive Suspension Custom Leaf Spring Enhancement Kit - Heavy Duty # RAS3611-HD for you to take a look at.
    view full answer...
    Image 1 for
  • Would Install of Roadmaster Active Suspension Kit Cause Driveshaft Angle to Change
    The pinion angle would slightly change if you installed a RoadActive Suspension kit part # RAS3611-HD and you were using enough suspension support to change the ride height but it would not be enough of a change to require to change anything. You would not need to make any changes to compensate for this.
    view full answer...


< Previous
123. . .4



Do you have a question about this Vehicle Suspension?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality vehicle suspension for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate vehicle suspension information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Chris R
Video Edited:
Chris R
Employee Mary E
Written by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Adam E
Installed by:
Adam E

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.


Product Experts Available Now!
Call 1-636-306-4830