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When the rear sags under towing or hauling, handling and braking can take a hit. The Timbren Rear Suspension Enhancement System adds up to 8,600 lbs of support using heavy-duty hollow rubber springs that sit above the axle. They compress progressively to keep your ride level when weight presses down, giving better traction and steering stability whether you’re pulling a camper or loading up the bed.
Bumps and potholes don’t have to beat you up when the truck is working hard. The Aeon hollow rubber springs cushion impacts and soak up road shock so you feel less bounce and vibration through the chassis. The flexible rubber design allows normal movement with light loads, then firms up automatically as weight increases—keeping the ride comfortable without harsh bottoming out.
Uneven cargo or quick lane changes can make a truck lean or sway, but these springs act separately on each side to keep you steady. Each spring engages only when needed, reducing body roll in corners and helping control trailer sway from crosswinds or passing traffic. Even off-center loads stay balanced so your truck feels planted through turns.
Installation is straightforward with vehicle-specific brackets and hardware included. The system replaces your factory bump stops and bolts directly to the frame rails—no drilling, hoses, or compressors needed. Once installed, it works automatically with your existing suspension for maintenance-free performance every time you tow or haul.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Frank
6/19/2021
While I have sold this vehicle since this review to my neighbor, she has told me she loves this product when she pulls her rv. I now have a 34 ton pick up and purchased a set for it. I am very satisfied with the Enhancers i purchased for it!
Brooke M.
4/21/2023
That is very true! Unloaded can be quite a rough ride. You may end up liking airbags better because if your truck isnt always loaded, you can deflate the airbags to make the ride smoother without having to uninstall anything. I linked to our website that has our different choices for air bags depending on if you have two or four wheel drive.
Helpful Links
Brooke M.
5/12/2023
Dont cut the springs, if you havent already! Doing so would void your warranty. The Timbren springs will definitely make for a rough ride when driving unloaded. If you arent constantly hauling, I wouldnt go with Timbren. I want to suggest part # SS45MR. These SumoSprings are a one and done install like your Timbrens but they are made from a much softer material compared to the hard rubber of the Timbren. They also have a similar price point. These will go on like the Timbrens and engage underload, but riding unloaded will be a much more enjoyable experience with the SumpSprings.
John Z.
4/26/2024
It serves its purpose especially when hauling. I got use to thumps except when on a wavy or rough road. Zero maintenance unlike more expensive air bag. Seem to be holding up well so far. No more whining.
Orville W.
12/12/2015
how is the ride without weight?
Andy
4/16/2025
They work great and are holding up very well. Can put 1500 pounds of rock in the bed of the truck and navigate steep curvy mountain roads easily.
Joe
3/23/2022
Awesome for hauling four wheeler in bed and for hauling load of fire wood in the bed, no broken leaf springs and no sag
Ronald G.
6/27/2020
The Timbren bumpers have continued to perform as originally stated. They are jolting to drive with unloaded. I will probably change them out for the Firestone air bags later to soften the load, as I do not trailer, or load heavy enough, to need them full time.
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Larry S.
10/17/2017
Still a happy camper after a year, and rolling along comfortably. Towing time has increased and timbrens still smooth.