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  1. Vehicle Suspension
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Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

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Retail:$265.18
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6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use. Lowest Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TTORTUN4 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Timbren Vehicle Suspension

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Timbren
  • Extra Heavy Duty

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.


Features:

  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride
    • Allows the leaf spring ample movement while cushioning light loads
      • Does not affect the empty ride of the vehicle
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 6,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


Reduced rear axle sag with Timbren suspension enhancement

Whether you're hauling heavy loads in your bed or cargo area or towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above your rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the leaf spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


Action of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's-side or passenger's-side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you are hauling off-center loads.


Trailer swaying as it is towed behind a truck

Because your vehicle handles better with the springs, less turbulence will be passed along to the trailer and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi) because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


An empty truck on a bumpy road without Timbren SES

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. And more elasticity allows for a more comfortable ride because the rubber has more travel.



TORTUN4 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Item # TTORTUN4

Installation Details TTORTUN4 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Timbren Rear Suspension Enhancement System - TTORTUN4

Average Customer Rating:  4.7 out of 5 stars   (3708 Customer Reviews)

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

- TTORTUN4
by:
2017 Toyota Tundra

UPS lost the box, but one e-mail to etrailer and another was on its way. Installed easily and is performing just as I'd hoped. Truck is more level and the ride is a little stiffer so towing is much better.



- TTORTUN4
by:

Installed a SES part #TTORTUN4 on a stock 2019 Tacoma, 4x4 offroad, 4-door, long-bed. The SES have been through one northern Illinois winter and driven 15,000 miles over 9 months. The SES is a five-star product. The ride comfort of the suspension is almost unchanged with an unloaded truck. The truck ride is a little stiffer and can be noticed on bumpier roads. The ride change would be comparable to adding 5-7 psig in the tires. The suspension performance is immediately improved. The truck does not roll on exit ramps and has less forward nose dive rocking motion when stopping. The SES suspension towing performance is significantly improved over stock. With 300 lbs of sand bags in the truck bed and a 4x10 utility trailer loaded with an ATV. The truck and trailer is much more stable in the wind and does not roll in the curves. The truck remains level and does not let the trailer nose dive when braking. The trailer has does not fishtail in the wind or during lane changes. The SES suspension has only been offroad a few times. The truck does ride slightly rougher in the bumpy trails or potholes. This truck does not have a lot of offroad time to really assess the offroad performance. The installation was less than 1 hour. It is recommended to apply a little penetration oil on the suspension U-bolts and clean the threads up with a wire brush. Especially if you live in Illinois where salt is applied to the winter roads. A good impact drill, 11/16” deep socket and a breaker bar. Also check out the E-Trailer installation videos. Here is some measurements before and after the installation. With the SES installed on the truck bed as measured from the wheel well to the ground was ¼” higher than stock. This does not sound like a lot but aesthetically it made the truck look level. With the truck loaded with 300lbs of sand, utility trailer and ATV the stock truck sagged 1-1/4” verses the SES only 3/8”. The SES improves both the ride height, performance and aesthetics of the truck when loaded. The Tacoma and SES has traveled unloaded, with a full bed, towed utility trailer, tandem axel U-Haul trailers and a 20’ Jon boat. For the type of driving I do this SES suspension is an awesome upgrade and well worth the money and time to install. Five stars all the way.



- TTORTUN4
by:
Toyota Tundra

I love my Timbrens! After a year of driving my Toyota Tundra 8 footbed with Timbrens under the rear, I can attest to the support they give. The rear no longer sags under heavy loads and my truck handles excellent with firewood and tools driving over the rough roads of the Adirondacks. When I turn, the truck doesn’t sway. They give me peace of mind when I’m driving which to me is invaluable. Timbrens were recommended to me over airbags for the harsh cold climate we have up north here and I love their simple design, quick installation, and no maintenance. I will be installing another pair in the front to haul a truck camper. I recommend them to anyone who regularly hauls a lot of weight.


Comments
Timbrens remain a great improvement on my ride quality hauling and towing heavy loads on a daily basis.
Bobby T - 06/11/2021


- TTORTUN4
by:
2019 Toyota Tacoma

Super easy install, took less then 30 min. Great for towing our small trailer and hauling bikes.



- TTORTUN4
by:

Easy install. Just completed the install. Total 45 minutes. Looking forward to testing these out with my camper.



- TTORTUN4
by:
Toyota Tundra

These were exactly what I needed for my Tundra truck. I went to the local Sod place and picked up a pallet. The pallet weight in about 1500lb and the truck did not squat down. The guy loading the pallet was shocked and asked why my truck did not squat down but a one early in the day did. They performed just as advertised. I thought I was going to have to put in air bags to pull my boat but these have done great. If you are on the fence about these, don't be.



- TTORTUN4
by:
2015 Nissan Titan

Timbren on 2015 Nissan Titan Sv, install was great as said on etrailer website. Only problem, which was solved spending more money, measurements is 5" inches, NOT 6" inches total height of Timbren, therefore, I had to spend extra for spacers to get the desired height. I probably would not had to buy extra if Timbren product would have been as stated,,, very pleased with service and product!



- TTORTUN4
by:

This is an amazing product. Took about 30 minutes total to install on my Toyota Tundra. That includes setting up and clean up. I pull a 20 foot flat bed trailer and a 30 foot travel trailer. This product really helps me when I do encounter bumps and uneven lanes. Helps keep my rig secure on the road and doesn’t interfere with normal everyday ride. I would definitely buy this product again and I most certainly would purchase from etrailer again. Great company, support and prices!



- TTORTUN4
by:

Works perfect for hauling my salt sprea der.



- TTORTUN4
by:

These bump stops are great and very easy to install. They help keep my 2019 Tacoma leveled when towing my 5,000lbs trailer. I’m very happy and recommend them if you are planning to tow a trailer with your Tacoma. My only complaint is that sometimes when driving on old or uneven roads, they will make the ride very bumpy as if you had a sports suspension.



- TTORTUN4
by:
2018 Toyota Tundra

Bought these for my new 2018 Toyota Tundra. On my previous 2010 Tundra, I had installed helper springs and decided to try Timbren's this time around. I bought 1/2" spacers, since I did not want the truck to sag too much. Not sure if you can see in the pictures, but with the 1/2" spacers, the Timbren's come into contact approximately 1/2" to 3/4". They can be a bit rough and bouncy once they come into contact, but no rougher or uncomfortable than with helper springs. Over all I am very happy with how they perform. The installation was very easy. Took me about 1/2 to 3/4 of an hour. All you need is a 24" breaker bar, a ratchet wrench, and a 19mm deep socket. Unloosen the nuts enough to remove the existing bump stop and replace with the Timbren's. That's all it takes!



- TTORTUN4
by:

I installed these on 2021 Taco. 15 minutes per side in an RV park. The make a phenomenal difference when towing my travel trailer and also improve cornering.



- TTORTUN4
by:

20 min install tops. Took more time retorquing the nuts after loading. Couple tips: only remove the two rear nuts on each u bolt to slip out the old bump stop to replace with the timbren. Go ahead and spray those nuts with pb blaster or wd 40 to help ease removal. I used a breaker bar so it was no problem. I would suggest that once you have the timbrens in place, I would jack up the rear under the receiver hitch (I used wood blocks) and slip your socket and extension back into the bump stop to retorque the 17mm bolt. I also went ahead and retorqed the nuts once I hooked up trailer. As far as towing now, wow what a difference. Virtually eliminated all front axle hop from road dips making for a much more confident and stable ride. 26' coach, 4900# dry. Pics are unloaded and then loaded.



- TTORTUN4
by:
Nissan Titan

I just wanted you to know that prior to my installation, this Coachman with a hitch weight of 700+ pounds would push the rear down so much that there was barely daylight between the tire and the wheel well...but look at us now. This '04 Titan with 189,000 miles and original suspension is riding high. Your product helped me get the bed level and has reduced the sway on the trailer so much that it is hardly noticeable. I am very happy with my purchase, your follow-up and the results.



- TTORTUN4
by:
Toyota Tacoma

I've had these on my '16 Tacoma for a year now. When the truck bed is empty, the ride is harsher than before, but not intolerable. When I'm loaded up for hunting (lots of heavy gear, maybe an elk, plus towing a pop-up camper), it's perfect--never bottoms out like it used to. I keep 120 lbs. of sand back there all winter for added traction in the snow, and that helps to smooth out the ride a bit. This photo with sagging rear was BEFORE the Timbrens--now it rides level.



- TTORTUN4
by:

They work as advertised and have been completely hands off since easy installation. Not adjustable like airbags, but simple, sturdy and reliable.



- TTORTUN4
by:
Toyota Tundra

Just finished installing the TTORTUN4 Suspension kit on my Tundra. It took me, with limited mechanical ability, about an hour to install and was a simple and easy installation. My truck loaded with tools, a construction canopy, and heavy bed-slide sits up in the back like its unloaded, rides great, and handles so much better! I'm super pleased! Thanks so much!



- TTORTUN4
by:
Toyota Tundra

Shipped and revived quickly, way easy install. Put them on during halftime of a college football game. Installed on a 2020 Tundra and have about one inch gap, so they work great. Way easier and cheaper than overload springs.



- TTORTUN4
by:

These are great! Dont change the ride at all when not in use and make towing my 7000lbs trailer so much more comfortable! Tow with confidence. Easy install took ten minutes with my buddy's lift. Could have been done easily on the ground too. Improves handling and ride when towing



- TTORTUN4
by:
2008 Nissan Titan

Product was shipped fast . Only took me 15 minutes to install. Can’t wait to try it out. Should make for easier towing. Thanks etrailer



- TTORTUN4
by:

Great product for my 2018 Tundra CrewMax . Really helps when pulling my camper!!!



- TTORTUN4
by:
2008 Toyota Tundra

I have a 2008 tundra double cab. I installed these and they helped out a lot. I pull a 27ft camper and the ride quality went from ok to a whole lot better. If i were going to pull a heavy load or camper I would definitely recommend these for any pickup truck



- TTORTUN4
by:
2011 Toyota Tundra

These made a large improvement on the way my 2011 Tundra handled my camper and dump trailer.



- TTORTUN4
by:

I received my order quickly and was able to install these easily..they are installed on the rear axle and prevent sagging when hauling heavy load, adds stability to the truck.


Comments
GREAT
Dave J - 05/19/2021


- TTORTUN4
by:

Really glad I purchased these Timbren. They add support and overload protection. But the thing I noticed more is how well our camper pulled after installing them.


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Ask the Experts about this Timbren Vehicle Suspension

  • Do I Have To Remove My Tires To Install The Timbren Springs # TTORTUN4 On My 2020 Toyota Tundra?
    No, you do not have to remove your tire to install the Timbren Rear Suspension Enhancement System # TTORTUN4. All you'll need to do is lift the rear end up about an inch or so. You don't need to lift your 2020 Toyota Tundra off the ground. This will make it easier to get the leaf spring axle mount off. You just need to remove the back U-bolt and slide the rest of the bracket aside until you get the Timbren system in place. The System will install on top of your leaf spring and the U-bolts...
    view full answer...
  • Rear Suspension Enhancement Recommendation for 2020 Toyota Tundra
    We do have the Timbren kit part # TTORTUN4 that is a fit for your 2020 Toyota Tundra which will give you an additional 6,000 lbs of suspension support. We don't have any kits that would provide more support but if we did it would probably cause your ride quality to be harsher than you'd like. For the ultimate in rear suspension support the RAS system part # RAS34FR is the way to go. This gives you the support you are wanting and actually improves the ride quality loaded and unloaded...
    view full answer...
  • Difference Between Timbren and SumoSprings for 2020 Toyota Tundra
    Both the Timbren # TTORTUN4 and SumoSprings # SSR-610-54 that you mentioned for your 2020 Toyota Tundra are jounce-style springs but the main difference between the two options is their actual construction, and subsequently the ride quality they will provide depending on your actual application. The SumoSprings # SSR-610-54 springs are made up of microcellular urethane, which offers a softer compression than the more durable, and thus rigid Aeon hollow rubber springs on the Timbren...
    view full answer...
  • Comparing Timbren and SumoSprings for The Rear Suspension of a 2021 Toyota Tundra
    The main difference when comparing Timbren and SumoSprings for suspension enhancement is going to be the weight capacities. Timbren uses hollow rubber springs that is able to support more weight but they can cause a firmer ride. The SumoSprings are made of a durable microcellular urethane that will progressively increase capacity as the spring is compressed. This will offer a smoother ride as the springs will better absorb the shock but they do not offer the capacity and stability of the...
    view full answer...
  • How to Eliminate Rear End Sag on 2006 Toyota Highlander Limited Carrying Mobility Scooter Lift
    You are probably at the edge of your hitch tongue weight capacity if not over which does make sense that it would cause some rear end sag. I recommend using the SuperSprings Coil SumoSprings Custom Helper Springs for Coil Spring Suspension - Rear Axle # CSS-1168R to help reduce that sag. These suspension enhancements will fit between the coils at the middle of your springs to add more stability and support. They are an easy installation if you start toward the bottom of the spring and...
    view full answer...
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  • Are Timbren Suspension Enhancement a Good Option for 2019 Toyota Tundra When Towing
    The Timbren Rear Suspension Enhancement System # TTORTUN4 isn't just a good option for your 2019 Toyota Tundra, it is a great option because they will improve your truck's handling and performance, offering your suspension the support it needs when you tow or have a heavy load. How they work is pretty simple, but extremely effective. When you are towing or you have a load in the bed of your truck, that weight causes the rear end to sag; the rear of your truck will be disproportionately...
    view full answer...
    Image 1 for
  • Will Rear of Tacoma Still Sag with Timbren Rear Suspension Enhancement System
    Jounce-style rear springs definitely offer the easier install (and maintenance thereafter) compared to air bag kits like the Firestone # F2410 you referenced, however they aren't the best option if your main concern is rear sag from a trailer's tongue weight. As you mentioned, there's still going to be a gap between the spring and contact point when the Timbren # TTORTUN4 is installed on your Tacoma and this is by design. If there wasn't a gap your empty ride would be really rough. I...
    view full answer...
  • Do the Timbren Rear Suspension Enhancement Systems Come as a Set for a 2006 Toyota Tundra
    Yes, the Timbren Rear Suspension Enhancement System, # TTORTUN4, comes as a pair for the right and left sides of the rear end on your 2006 Toyota Tundra. I have a similar system on my Dodge truck and it works very well when towing a trailer or carrying heavy loads in the bed.
    view full answer...
  • SumoSprings or Timbren Suspension Enhancement For a 2017 Toyota Tacoma Pulling Car Hauler Trailer
    I recommend the Timbren Rear Suspension Enhancement System # TTORTUN4 over the SumoSprings Solo Custom Helper Springs # SSR-612-47 for your 2017 Toyota Tacoma TRD Sport. The Timbrens have a much higher weight capacity at 6,000lbs versus the SumoSprings at 1,000lbs. This will give you a better ride level and stabilization when you are towing your car hauler. A Equal-i-zer Weight Distribution System # EQ37100ET may be a better option if you only need the suspension enhancement when you...
    view full answer...
  • Timbren Kit or Air Bag Suspension Kit Recommendation for 2017 Toyota Tundra
    Jounce-style helper springs are easier to install than air bags since they're less parts involved. Also, once they are installed you basically leave them alone. Air bags need to have the air pressure monitored and changed according to the load that's being carrier. The jounce-style will not impact the ride quality unless there is load present. The benefit of the air bags is that you can adjust them to your liking when you need to. If the weight in your truck varies on a regular basis...
    view full answer...
  • Does Timbren Suspension Kit for 2011 Toyota Tundra 4WD Require Spacer Kit
    We checked with Timbren and their rear suspension kit part # TTORTUN4 that you referenced is a confirmed fit for your 2011 Toyota Tundra 4WD with the tow package and does not require the use of a spacer. This fits as-is and will work well. It provides up to 6,000 lbs of support to help you tow within your current tow capacity. The only reason you'd need a spacer kit is if you had a suspension lift installed on your truck.
    view full answer...
  • Does the Bump Stop of a 2011 Toyota Tacoma Get Removed to Install Timbrens
    What you have found on your 2011 Toyota Tacoma is the bump stop, or jounce bumper. This will get removed to install the Timben part # TTORTUN4 that has been confirmed as a fit for your 2011 Toyota Tacoma.
    view full answer...
  • Torque Specification for Timbren Rear Suspension Enhancement System
    I just spoke with my rep at Timbren to get the Torque spec's for the Timbren Rear Suspension Enhancement System item # TTORTUN4. She said that they do not specifically list Torque specifications because each part isn't specific to any certain manufacturer. You will want to hand tighten the bolt and then tighten it to 30-35 ft-lbs but make sure you stop before the metal bends.
    view full answer...
  • Differences Between the Timbren and SumoSprings for a 2012 Toyota Tundra
    For your 2012 Toyota Tundra CrewMax, you will want to use part # TTORTUN4 for the Timbren Rear Suspension Enhancement System or part # SSR-610-47 for the SumoSprings Solo Custom Helper Springs. Both of these options will provide you with additional support that will help to reduce rear end sag while towing. They will also both work to reduce body roll, improve stability, and increase the life of your existing suspension components. The Timbren springs have a weight capacity of 6,000...
    view full answer...
  • Who Can Install Timbren Rear Suspension Enhancement System # TTORTUN4
    The Timbren Rear Suspension Enhancement System # TTORTUN4 that you referenced has a pretty straightforward and simple installation process. It just requires you to loosen the axle U-bolts and remove the factory bump stops on the truck and replace them with the Timbren springs. Any local mechanic should be able to handle this without an issue so it doesn't necessarily need to be a shop that specializes in suspension. I just recommend checking with a local mechanic or even an auto shop...
    view full answer...
  • Best Non-Air Bag Suspension Enhancement for 2006 Toyota Tundra with 3" Lift
    The best product for your application is the Timbren Rear Suspension Enhancement System (SES) # TTORTUN4. This is very easy to install and does a great job of engaging when under to to help support the OEM suspension on your 2006 Toyota Tundra. Since you said you have a lift you may need to use a spacer. To determine this you will need to measure from the top of your leave spring stack to the bracket where your OEM bumpstop will make contact. For the Timbren suspension to work properly...
    view full answer...
  • SumoSprings or Timbren Suspension Enhancement for 2015 Toyota Tundra
    Because the Timbrens like part # TTORTUN4 that you referenced have a reputation as having kind of a harsh unloaded ride quality I would recommend the SumoSprings part # SSR-610-40 since you will get the same support without as harsh of a ride when the vehicle is unloaded. The lighter duty SumoSprings is what I recommended as it will still give support but it would have a minimal affect on ride harshness. There a guy that works here who has had both installed on his truck and he...
    view full answer...
  • Is it Normal to Have a Gap Between Timbren and Vehicle Frame Unloaded
    Yes, having a gap between the Timbren and the trailer frame allows the suspension to operate without any harshness when the vehicle is unloaded. The when the vehicle has the weight of cargo in it that gap will go away and the Timbren will be there to provide additional support.
    view full answer...
  • How Does Bump Stop of 2010 Toyota Tundra Remove to Install Suspension Enhancement
    While we don't carry the Hellwig kit you have we do have the Timbren kit part # TTORTUN4 which is a confirmed fit for your 2010 Toyota Tundra and also requires the removal the factory bump stop. What you need to do is loosen the axle u-bolts first and the bump stop will come out. If you fast forward to the 2:55 mark of the video I attached you can see how our installer removed a similar Toyota bump stop.
    view full answer...
  • Best Way to Prevent Sagging Suspension When Towing a Trailer
    For sag from towing a trailer the best recommendation I can make is actually a weight distribution system. Suspension enhancement will help level your truck while towing. But the advantage to a weight distribution system is that it levels the vehicle by distributing the tongue weight of the trailer up to the front axle of the vehicle as well. This will help greatly with handling and braking, especially in an emergency situation. The best way to pick out a weight distribution system is...
    view full answer...
  • Timbren Kit that Fits 2009 Toyota Tacoma with 4 Leaf Spring Pack Rear Suspension
    Yes the Timbren kit part # TTORTUN4 does fit the versions of the 2009 Toyota Tacoma that have the 4 leaf spring pack like you mentioned. They have this called out in the install notes.
    view full answer...
  • Comparing the Timbren Suspension Enhancement to other Helper Springs Options for 2007 Tundra
    For your 2007 Toyota Tundra, I highly recommend the Timbren Rear Suspension Enhancement System part # TTORTUN4. The Timbren springs will be much more durable than the Air Lift AirCell Custom Helper Springs Kit which was discontinued. The durability will result in more support and a longer life. The Timbren have also produced much greater feedback from our customers and are currently one of the most popular suspension enhancements we carry. I have attached a review video of the Timbrens...
    view full answer...
  • U-Bolt Torque Rating for Installing Timbrens on a 2008 Toyota Tundra
    I did some checking and it looks like the torque spec that Toyota recommends for the suspension U-bolts of your 2008 Toyota Tundra is 74 ft lbs. That is how much torque you should use when you are installing the Timbren system part # TTORTUN4.
    view full answer...
  • Adding Rear Suspension to Toyota Tundra with Weight Distribution System to Reduce Sag
    Before adding any rear suspension enhancements I first recommend making sure that your existing weight distribution system is properly adjusted and rated for your setup. Make sure your total tongue weight (which includes both the loaded tongue weight of the trailer plus any added cargo weight coming from behind the rear axle of your Tundra) falls within the system's operating range. Typically a properly rated system will get a truck back up to within an inch of stock height at the rear...
    view full answer...
  • Where Does the Timbren Suspension Enhancement System TTORTUN4 Install on a 2003 Toyota Tundra
    According to the installation instructions for the Timbren springs, # TTORTUN4, which I have linked for you, the Timbren springs will mount on top of the spring stack. You will need to remove the factory bump stop on the vehicle. I have also included a link to an FAQ article on Timbren springs for you.
    view full answer...
  • Will the Timbren Rear Suspension Enhancement System Fit a 2018 Toyota Tacoma with 3 Inch Lift
    The Timbren Rear Suspension Enhancement System will perform just as well on a vehicle that has a three inch suspension lift as a vehicle that is stock height. However, you will need to add spacers so that the Timbren's engage at the right time. If your 2018 Toyota Tacoma has a three leaf spring pack then you will want to use part # TTORTUN4L but if it has a four leaf spring pack then you will want to use part # TTORTUN4. For the spacer you can use the Timbren 1" Spacer For Raised Frame...
    view full answer...
  • How Tall are Timbren Suspension Enhancement Springs for a 2008 Toyota Tundra
    It sounds like you're asking about the # TTORTUN4 Timbrens that do fit your 2008 Toyota Tundra. They measure 3-3/4 inches tall. I've linked a video of them being installed on a 2007 Tacoma so you can see the process.
    view full answer...
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  • Suspension Enhancement Recommendation for 2015 Coachmen Freelander 22 ft Class C
    Suspension enhancement would be your best option since you mentioned having an aluminum frame trailer. That we've found there isn't an aluminum frame trailer manufacturer who will state that you can use weight distribution with their trailers. They just put a different kind of stress on the trailer frame. So the best option I have would be the SuperSprings part # SSA22 which installs on the leaf spring you have now and gives you 2,200 lbs of additional suspension support.
    view full answer...
  • Axle U Bolt Torque Recommendation for a 2012 Toyota Tundra for Timbren Install
    I did some checking and it looks like the torque spec that Toyota recommends for the suspension U-bolts of your 2012 Toyota Tundra is 74 ft lbs. That is how much torque you should use when you are installing the Timbren system part # TTORTUN4.
    view full answer...

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    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 Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Brandon M
Expert Research:
Brandon M
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Robert C
Installed by:
Robert C
Employee Mary E
Updated by:
Mary E
Employee Wilson B
Updated by:
Wilson B
Employee Zach D
Video by:
Zach D
Employee Jonathan Y
Video by:
Jonathan Y
Employee Brent H
Test Fit:
Brent H

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