Timbren Suspension Enhancement System - Severe Service - Rear Axle
This item does not fit your vehicle
2017 Chrysler Pacifica
These items fit your vehicle
2017 Chrysler Pacifica
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
When you’re hauling serious weight, squat and sag can throw off handling and braking. The Timbren Suspension Enhancement System uses 8,000-lb capacity hollow rubber springs mounted above the rear axle to keep the vehicle level and stable under load. The progressive spring design gets stiffer as more weight is added, maintaining ride height and helping prevent rear-end sag when towing or carrying heavy gear.
Heavy loads can make every bump feel like a pothole. These Timbren springs act as built-in shock absorbers, taking the brunt of bumps and rough roads. The rubber construction cushions lighter loads while keeping enough flex for a smooth, comfortable ride. By preventing bottoming out, they also reduce wear on factory suspension components so everything lasts longer.
When crosswinds push your trailer or you hit uneven ground, each Timbren spring works independently to keep its side planted. That means less sway, less body roll, and better control through curves or uneven terrain. The improved stability also helps your trailer track straighter by cutting down on movement that transfers from truck to trailer.
Setup is quick with custom brackets that bolt directly to the frame—no drilling or air lines to run. Each kit includes two Aeon hollow rubber springs, brackets, and hardware for a straightforward install using basic tools. Once installed, the system works automatically with your factory suspension to handle weight without any adjustments needed.
For trucks carrying slide-in campers, in-bed salt spreaders, or other constant heavy gear, this severe service setup delivers dependable support day after day. It’s built to keep the vehicle level and secure even under maximum load while maintaining stability for safer steering, traction, and braking performance.
Timbren springs will not increase your vehicle's weight-carrying capacity. Do not exceed the manufacturer's recommended weight limit.
Customer Satisfaction Score:
87% were satisfied with this product
13% of customers were not satisfied
Ratings & Reviews
Do you have a question about this Vehicle Suspension?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Lazer S.
1/20/2026
Sorry to hear that, William. I have heard similar things from people that have installed these severe duty Timbrens though. What are you towing/carrying and how often? And did you already call or email in to get the return started?