Timbren Rear Suspension Enhancement System
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1997 Pontiac Grand Am
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1997 Pontiac Grand Am
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Heavy loads and trailers can make the rear of your vehicle sag and throw off handling. The Timbren Rear Suspension Enhancement System adds up to 3,000 lbs of extra support right above the rear axle to keep things level and stable. Its hollow rubber springs compress as weight increases, stiffening automatically to control squat and maintain a smooth, steady ride whether you’re hauling gear in the bed or towing a heavy trailer.
The Aeon hollow rubber springs take the hit from bumps and uneven roads so your factory suspension doesn’t have to. They absorb road shock and help reduce bounce and vibration, giving you a more comfortable ride even when you’re loaded down. At the same time, the rubber design prevents bottoming out on rough surfaces and helps extend the life of your stock suspension components.
When turns, swerves, or off-center loads try to throw you off balance, each spring works on its own to keep the vehicle level side to side. That independent action helps control body roll in corners and keeps things planted when hauling uneven cargo. You’ll notice better stability in curves, less sway from passing trucks, and steadier tracking when towing.
There’s nothing complicated about getting this system on your vehicle. The custom brackets bolt directly onto existing frame points with no drilling required, replacing the factory bump stops. Once installed, there are no airlines, compressors, or pressure adjustments to worry about—just straightforward support that’s always ready when you load up.
Ratings & Reviews
Kate F.
5/6/2026
Glad to hear the Timbren systems worked out so well for your RAM Van Mitchell! It’s great that you noticed the smoother, more progressive response compared to the factory bump stops, especially under load. Thanks for sharing your experience with both the front and rear installs, that’s really helpful for others considering the upgrade. What kind of loads are you usually hauling with your van?
Brooke M.
5/7/2025
Wow, thank you for sticking with us, Don! That is awesome. I think you made an excellent choice here. Timbrens are tough and the heavy duty are SUPER tough. Glad to hear these were a good fit. Love the photos! Is that your own property?
Don
5/21/2026
The TIMBRENs work as stated during when I am pulling anything heavy. However, when the truck is not pulling anything, anyone riding in the rear seat gets a very hard jarring jolt when driving over any roadway repairs, bumps, expansion joints on bridges. I wished that I would have went with the Super Springs, or the Road Active Suspension. I may replace the TIMBRENS later.
Gwendolyn Y.
5/21/2026
Lazer S.
6/16/2026
They definitely look like they are helping, Orlando! How are they when you aren't towing? We hear a lot of people say they can be pretty harsh when unloaded.
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Jay S.
8/14/2026
Now that its been a year Im very impressed with them. Theres no ride detriment without the 5th wheel attached and they do a great job of mitigating squat