Timbren Vehicle Suspension
- TTORTUN4L
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- 3,000-lb Load Support: Keeps your vehicle level and stable when towing or hauling heavy gear.
- Smoother Ride on Rough Roads: Hollow rubber springs absorb shock and reduce bounce for comfort.
- No Maintenance Needed: Simple bolt-on design replaces bump stops with no air lines or adjustments.
- Reduces Body Roll and Sway: Each spring works independently to steady steering and cornering.
- Protects Factory Suspension: Helps prevent bottoming out and extends suspension life under load.
Features to know about
Stop the Sag and Squat: 3,000-lb Rear Suspension Support
Heavy loads can make the back of your truck sag and throw off handling and braking. The Timbren Rear Suspension Enhancement System adds up to 3,000 lbs of support above the rear axle so your ride stays level under load. The hollow rubber springs stiffen progressively as weight increases, keeping steering steady, braking consistent, and headlights aimed where they should be whether you’re hauling gear or towing a trailer.
Smooth Out the Rough Roads: Hollow Rubber Springs that Absorb Shock
Bumpy roads and uneven pavement can beat up your suspension and make long trips uncomfortable. Timbren’s Aeon hollow rubber springs act like heavy-duty shock absorbers, taking the brunt of bumps and potholes so you don’t have to. The rubber construction cushions light loads and absorbs road shock before it reaches the cab, giving you a smoother, more stable ride and helping extend the life of your factory suspension.
Stay Steady in Crosswinds and Turns: Independent Spring Action
When curves or crosswinds try to push your truck around, each Timbren spring works on its own to keep that side planted. This independent action cuts down on body roll when swerving or cornering and keeps off-center loads from leaning your truck to one side. The result is a ride that feels balanced and controlled even when conditions or cargo shift unexpectedly.
Install It and Get Back to Work: No-Drill, Maintenance-Free Design
No need to run air lines or fuss with compressors—just bolt on the Timbren kit where the factory bump stops sit and you’re done. The system includes two Aeon hollow rubber springs, vehicle-specific brackets, and all required hardware for an easy, no-drill installation. Once installed, there’s nothing to maintain or adjust; the springs automatically add support only when needed so you can keep driving without extra upkeep.
Specs
Weight and Capacity
Components and Inclusions
- Includes: 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
- Replaces: axle bump stops on frame
Installation
- Drilling: No drilling required
- Design: Designed to work with a suspension system that is in good working order
Warranty
- Limited lifetime warranty: satisfaction guarantee
TORTUN4L - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren
Installation Details 
This Product Fits The Following Vehicles
Rick S.
1/29/2013
Since the Timbren install we have towed the camper on back roads with stop and go traffic as well as on the highway at 65 mph. The Pro4X does ride level and handles the added weight well. I wish I had a longer wheel base and a tandem axle trailer as on occasion we develop a slight up and down oscillation until the suspension settles down. It is noticeable when driving over long bridges. This is mainly due to the truck setup and not the Timbrens. We had this problem before the install and the Timbrens are making a difference.I have also hauled an estimated 780 lbs of hardwood flooring in the bed at 65mph and the truck handled it with no problem. It remained level and stable.