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When heavy cargo or a trailer makes the rear end sag, handling and braking can get sketchy. The Timbren Rear Suspension Enhancement System adds up to 2,000 lbs of load support above the rear axle to keep your ride level. These hollow rubber Aeon springs work with your factory suspension to stabilize steering, maintain traction, and reduce squat when hauling or towing.
A bumpy road or uneven load doesn’t have to make the drive harsh. The Timbren system’s hollow rubber springs compress progressively—soft for light loads, firm when the weight piles on. That means they cushion smaller bumps while stiffening under heavier pressure, so you get a smooth ride no matter what’s in back.

Sharp turns and off-center loads can shift weight from side to side. Each Timbren spring works independently to support the driver or passenger side as needed, cutting down on body roll and sway. The result is steadier cornering and a more controlled feel when maneuvering or towing through curves and crosswinds.


The durable rubber springs absorb road shock before it hits your suspension, helping prevent bottoming out and reducing wear on factory components. With no airlines, compressors, or adjustments to worry about, the system stays ready whenever you add weight—just load up and drive with confidence that your suspension is protected.
Installing serious load support doesn’t require major tools or fabrication. The kit includes two Aeon hollow rubber springs with vehicle-specific brackets and hardware that bolt in place of the factory bump stops—no drilling required. Once mounted, the springs automatically engage under load for a leveled stance and stable ride every time you tow or haul.

Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews

Michael C.
3/22/2015
Suspension is solid! Vehicle rool on turns is gone, towing an enclosed 16 foot cargo trailer is a breeze! Nice product and never have to worry about loosing an air line or bag because this system is simple and solid. Keeping it simple!!!

Jesse B.
2/10/2018
Both are working great! Everything I have purchased from you is working like it’s supposed to.

Steve
2/7/2015
Hi jim , do you use on honda odyssey or another vehicule ? Thank you for your answerSteve

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Jesse M.
9/10/2026
Awesome! Glad to hear the Timbrens made such a big difference in the ride quality. Thanks for sharing! Happy travels!