Timbren FR350SDJ Rear Suspension Enhancement (8600 lbs. Capacity) | 2017-2025 Ford F350 Super Duty 4WD/2WD

Features:

• Eliminates rear-end sag and squat
• Supports up to 8,600 lbs. of load
• Improves stability while towing or hauling
• Progressive-rate rubber springs for smooth performance
• Replaces factory jounce stops seamlessly
• No air lines or compressors needed
• Laser-cut steel construction for durability
• Powdercoated to resist rust and corrosion
• Easy bolt-on installation with no drilling
• Performs well loaded and unloaded
• Fits 2017–2025 F-350 SRW and DRW
• Lifetime warranty from Timbren included

Eliminate Vehicle Sagging and Squatting

If you're using your 2017-2025 Super Duty for towing and hauling, it's only a matter of time before your suspension starts to sag and squat under the constant pressure of your trailer and heavy loads. Timbren's Rear Suspension Enhancement System is designed to enhance your existing suspension setup to support heavy loads, fifth wheels and toy haulers and reduce stress on your suspension components. The kit includes hollow rubber springs that deliver a progressive spring rate to minimize rear-end sag. This Timbren Helper Spring Suspension Upgrade replaces the jounce stop on the frame for improved handling loaded and unloaded.

Laser-Cut Powdercoated Steel Construction

Each piece of high-strength steel included in this kit has been precision cut and powdercoated for maximum durability and strength. Installing Timbren's Rear Suspension Enhancement System will help you avoid bottoming out, reduce sag and squat and improve handling under load. Another benefit to these helper springs over air bags is how easy they are to install and maintain, with no fittings, air lines or hassles to deal with. This Timbren Rear Suspension Enhancement System features a 8600 lbs. weight capacity.

Fitment: 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 Ford F350 Super Duty 2WD/4WD

Notes:

• Designed to reduce rear sag and squat under heavy towing or hauling
• Ideal for supporting fifth wheels, toy haulers, and heavy trailers
• Replaces factory jounce stops with progressive-rate rubber springs
• Improves handling both loaded and unloaded for consistent control
• Eliminates the need for air lines, fittings, or ongoing maintenance
• Made from laser-cut powdercoated steel for lasting durability
• Helps prevent bottoming out and improves suspension longevity
• Rated to handle up to 8,600 lbs. of load support capacity
• Fits all 2017–2025 Ford F-350 SRW and DRW, 2WD and 4WD models
• Backed by Timbren’s lifetime warranty for peace of mind