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Heavy gear in the back or a loaded trailer can make your rear end sag and throw off steering and braking. The Timbren Rear Suspension Enhancement System adds up to 6,000 lbs of extra support right above the axle. The hollow rubber springs sit between the frame and axle to keep things level, reduce squat, and help your suspension handle the weight without bottoming out. No drilling or air lines—just bolt them on where the factory bump stops used to be and go.



When the road gets rough, these hollow rubber springs take the hit so your factory suspension doesn’t have to. They act like built-in shock absorbers, soaking up bumps and vibration from uneven pavement or gravel roads. That means a smoother ride when loaded and less wear on your stock suspension over time.

Each spring works on its own, so when one side of your vehicle sags or leans in a turn, only that side engages. This independent action cuts down on body roll, helps control sway, and keeps your setup feeling planted when you’re cornering, swerving, or dealing with off-center loads. You’ll feel more confident behind the wheel—especially when a gust of wind or passing semi tries to push you around.


Installing this system is straightforward with vehicle-specific brackets and hardware included. There’s no need for compressors, air hoses, or ongoing maintenance. Once bolted into place, the rubber springs do their job automatically—firming up under load and staying quiet when unloaded. Built to last without drying out or cracking under normal use, they’re backed by a limited lifetime warranty for long-term peace of mind.
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
Ratings & Reviews

Thomas
10/14/2022
2010 Toyota Sequoia- Timbrens helped with leveling and towing our 25 foot Airstream. However, we still needed Firestone Airbags. No problem with the Timbrens.

Pratana
8/8/2022
After a year. Timbren has held up excellent. I tow a 30ft travel trailer with about 7200lbs and completely eliminates the sag along with an E2 WDH. I definitely recommend this product
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Cameron
6/27/2024
Product works great. For very short trips, or when you want to disconnect your WDH for better maneuverability for those tight corners, the sag with the trailer connected is minimal as the Timbrens pick up the load. Under everyday driving, they are not engaged so stock ride quality is not compromised. Have seen people post issues in online forums about air bag problems which is why I went with Timbrens. Set it and forget it - maintenance free. I made the right choice. I am in no way affiliated with etrailer or timbren.