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  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Standard Duty
THIS ITEM IS NOT A FIT FOR
2021 Jeep Wrangler
Timbren

Timbren Rear Suspension Enhancement System - Preorder

$269.36
Vehicle Suspension
Not Confirmed to Fit

2021 Jeep Wrangler

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COMING SOON! Timbren is actively working on rear suspension for your 2026 Mercedes-Benz Sprinter 3500. We'll update info as we get it. Preorder now for quickest delivery. Great Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System - Preorder part number T52AV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension

  • Bump Stops
  • Towing/Load Leveling
  • Timbren
  • Rear Axle Suspension Enhancement
  • Standard Duty
  • Suspension Only

COMING SOON! Timbren is actively working on rear suspension for your 2026 Mercedes-Benz Sprinter 3500. We'll update info as we get it. Preorder now for quickest delivery.


Features:

  • Available for preorder
  • Improves suspension, handling, and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride when towing or hauling gear
    • Allows the leaf spring ample movement while cushioning light loads
    • 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
  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're 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 the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the 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.


Animation 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.


An example of a trailers swaying

Because the 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

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall when loaded. 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 when loaded or towing because the rubber has more travel.



FF26Merc3500Timb Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Item # T52AV



This Product Fits The Following Vehicles




Ratings & Reviews

4.7

3500 reviews
5 Stars
(2783)
4 Stars
(455)
3 Stars
(112)
2 Stars
(68)
1 Star
(82)
COMING SOON! Timbren is actively working on rear suspension for your 2026 Mercedes-Benz Sprinter 3500. We'll update info as we get it. Preorder now for quickest delivery.

by:

These are the hardest ride you could possibly get loaded or unloaded I would not recomend timbrens to anyone. Had to eat the cost and replace them with air bags. (Aweful product)



by:

Was able to install easily with video.



by:

great and fast service needed the parts right away for a road trip and you got it done



by:

Happy with this purchase. Keeps the truck level and the ride smooth.



by:

The supplied bolts are too short. Finding the right bolts added to time to do the install.

The jounce springs are 1/2 inch from axle. I'm sure the ride will be very harsh even when not loaded...



by:

fit was good installed in under 1/2 hrs. So far the worked great



by:

Easy installation. The truck sits well and feels better on the road



by:

good customer service



by:

They went right on and all the hardware came with them.



by:

Easy install - took less than 30 minutes. The truck now sits level with the bed loaded.



by:

Worked better than I excepted. I have a old pickup with really tired suspension and this product made it better than new.



by:

Very satisfied! Easy to install and use on my Nissan Titan. I didn’t even need to remove the wheel to install it. Now my truck does not squat when pulling a trailer or carrying heavy load.



by:

Have not installed product yet,Christmas present for a friend.Box came damaged from postal service,tore open,hopefully all parts are there.



by:

I assume they help. I have no way of telling before and after



by:

When I called they were very knowledgeable about the products and made sure I ordered what was going to work on my truck.



by:

Carrieann was awesome in helping try to solve a very difficult problem. The product installed easily just as the direction stated and the video you put on the website was very useful. Thanks



by:

My rep Jamie is awesome! She confirmed the part for my truck and got it shipped immediately. The product looks strong and was an easy install.



by:

Some soapy water, a short 2x4 and bouncing up and down on the bumper a few times and these were installed. From removal of the old ones til the new ones were in took about 30 mins.



by:

Easy install, test drive went well. Looks like the fix that was needed!



by:

Product looks good. Now if only they came with an installer.



by:

Always great experience.



by:

I recently purchased a 2024 tundra hybrid platinum. With this being the luxury addition the rear suspension is lacking when in comes to towing when I would hook to my 7x16 enclosed trailer my truck really saved.
I purchased and installed the timbren ses stops and no more sag. The ride of my truck remains smooth when unloaded and the timbrens also stopef the side to side rocking. Will post another after I tow a few times.



by:

Easy to install on my 2022 RST Silverado, took approx 10 minutes start to finish.



by:

Fast shipping



by:

I never received the item so I canceled and ordered through [online store] I got it the following day. Now, months after I canceled my order, I received this empty box with and note from the mail carrier stating that he delivered an empty box.


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Info for this part was:

Employee Leah S
Edited by:
Leah S
Employee Wilson B
Updated by:
Wilson B
Employee Dawn Z
Written by:
Dawn Z

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