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Heavy gear in the bed or a big trailer on the hitch can make the rear sag and throw off handling. This Timbren Suspension Enhancement System uses 8,000-lb capacity hollow rubber springs that sit above the rear axle to keep things level. The springs add support as weight increases and let the leaf springs move freely on lighter loads. You get a stable, even stance that helps steering, braking, and traction stay consistent when hauling or towing.
Every bump and pothole hits harder when you’re loaded down. Timbren’s hollow rubber springs act like shock absorbers, collapsing along their folds to soak up road impact. As they compress, they stiffen progressively to prevent bottoming out and protect your suspension. The result is less bounce and a smoother ride whether you’re on job sites, gravel roads, or long highway runs.
When turns, swerves, or uneven loads try to push your truck around, each rubber spring responds on its own. That independent action keeps side-to-side balance in check, cutting down body roll and sway. It helps the truck feel planted through curves and keeps trailers tracking straighter when gusts or passing traffic kick up wind.
There’s no air line routing or compressor setup here—just bolt-on brackets that replace the factory bump stops on the frame. The kit includes 2 Aeon hollow rubber springs with vehicle-specific brackets and hardware for a straightforward install using basic tools. With no drilling required and no air adjustments to manage, it’s a maintenance-free setup built for long-term use while extending the life of your existing suspension.
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
Ratings & Reviews
Jenny N.
10/26/2021
I do have a solution to offer. This kit is designed to work with Severe Service trucks like tow trucks or with slide in campers. It can create a stiffer ride when not being used to tow. I would recommend part # TGMRCK25S for your 2008 Chevy Silverado 2500.
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Steve
10/20/2022
It worked for what I needed it for, I just recently removed the bushings as the normal trailer pulling I was doing is done for now and I wanted the ride quality to return to normal. After removing them, I was a little disappointed that the welds for the bolts broke and everything seemed loose. I can imagine if I had it in service for another year or two it would have failed completely. Maybe that is my fault for not periodically taking it apart and tightening things down again but I did not think that would be necessary as the bushings are just that, bushings.
Heather A.
5/26/2026
Wow, that is exactly what we love to hear about these springs! That is a serious camper. Any plans with it this summer?
Tom E.
8/9/2026
Still working great! No issues. Other than being dirty, they look and perform like new.
Jerred H.
8/9/2026
James
7/27/2026
So far they have been fine. They are part of my suspension upgrades, along with stable loads and sway bar. I wasnt worried about harder ride when camper off, I wanted best suspension when camper was on. I would definitely recommend them.
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Bryan L.
12/11/2017
The air springs have performed flawlessly ,very pleased with the product and performance ! As a matter fact I was recommending this product to a friend the other day.