Timbren Front Suspension Enhancement System
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1989 Chevrolet P Series
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1989 Chevrolet P Series
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When heavy gear or equipment adds weight to the front end, steering and braking can feel off. The Timbren Front Suspension Enhancement System provides up to 14,000 lbs of added capacity to keep the vehicle level and steady. Each hollow rubber spring works with the factory suspension to improve stability, maintain control, and help prevent sag when weight is added up front.
Bumpy roads and uneven loads can beat up your suspension over time. Timbren’s hollow rubber springs act as shock absorbers, taking the brunt of rough terrain so your ride feels smoother and more stable. The progressive design compresses easily for small bumps but stiffens as weight increases, cushioning light loads while offering strong support when things get heavy.
A sagging front end can throw off headlight aim and steering response. These rubber springs automatically work to lift the front back to level when under load so traction, steering, and braking stay consistent. Even with heavy attachments out front, the system helps maintain proper alignment for a safer, more predictable drive.
Cornering or hitting off-center loads can make a truck lean or sway. Timbren’s springs work independently on each side so each one only engages when needed. That independent movement cuts down on body roll in turns, improves balance with uneven loads, and keeps the vehicle feeling planted through curves or sudden maneuvers.
Getting extra suspension support doesn’t have to be complicated. This kit includes two hollow rubber springs, vehicle-specific brackets, and all necessary hardware. The brackets bolt directly to existing frame mounts above the front axle—no drilling required. Once installed, the system works automatically with your suspension for reliable support whenever you need it.
Ratings & Reviews
Kate F.
3/26/2026
Glad we had the right fit for you Tom! Where are you located, and how much snow did you get this last season?
Heather A.
5/8/2026
I hear you, and that makes sense based on what you’re describing. If the Timbrens are in constant contact, they’re basically always engaged, which is why the front end feels so stiff instead of only firming up under load. You might actually be a really good candidate for SumoSprings part # SSF-281-47 (as long as your truck is a 2WD) They’re a similar concept but made from a softer, more progressive material, so they compress more gradually instead of feeling like a hard stop. That usually gives you support when you need it without taking away all the ride comfort like you’re experiencing now. Glad to hear the install went smoothly and the quality was there, that’s pretty typical with Timbren, it just comes down to how they behave on your specific setup. What were you mainly trying to improve up front, sag, handling, or just a smoother ride overall?
Nick S.
11/10/2025
That is great to hear! I am glad you were able to feel the difference right away. I am happy to hear that you were able to get them installed easily as well.
Brooke M.
7/9/2025
Happy to hear that, Dan! Thank you for sharing all the photos, too. What are you towing now that you have a some extra suspension support?
Brooke M.
7/11/2025
Scott
3/23/2026
Still working fine, the truck’s suspension has settled now the the ride is even bettet
Bobby L.
5/10/2020
The timbren springs are working out better than expected. I installled new Monroe matic RV shocks front and rear on my 2006 Chevy Silverado 1500 just prior to putting the timbrens on the front and the sumo springs on the rear and the ride is great especially with a load or hauling my travel trailer and the ride is just as smooth empty. I highly recommend the timbren and sumo springs because they fit by application and there is nothing additional to buy. Thanks etrailer.
Jeffery
8/4/2023
I have upgraded towards trailing with my truck camper Artic Fox 990. I have not had the time to reach to etrailer for a solution with my 1998 Dodge 2500 timbrens installation. I have a new addition and will install the timbrens on a F-550 to have the same travel assurance...Pre trip test run to Key West early this winter... Anchorage 2024 Spring...Thank you etrailer
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Taylor
3/8/2021
The Timbren kit after a year is still doing everything I wanted. With the 800lb plow on the ground the measurement to the center of the wheel arch is 36”. With the plow raised the measurement is 35 12”. With spring approaching I will be checking over the front suspension and making sure everything is torqued and check for signs of wear.