Timbren Rear Suspension Enhancement System for 2017-2026 Ford F-350 Super Duty - FR350SDJ

Key Features & Specs:

• Part Number: FR350SDJ
• Brand: Timbren
• Product Type: Suspension Enhancement System
• Location: Rear Suspension
• Kit Type: Rear Kit
• Rated Capacity: 8,600 lbs
• Kit Height (Without Spacer): 6.8125 in
• Kit Height (With 1/2 in Spacer): 7.3125 in
• Spring Type: Patented Aeon® hollow rubber springs
• Performance Benefit: Helps reduce sag, sway, and body roll when towing or hauling
• Ride Quality: Maintains a comfortable ride whether loaded or unloaded
• Installation: DIY bolt-on installation
• Maintenance: No post-installation maintenance required
• Warranty: Lifetime warranty

What’s Included:

• Springs: 2 x Patented Aeon® SES suspensions (hollow rubber springs)
• Spacers: 2 x 1/2 in rubber spacers
• Brackets: 2 x Mounting brackets
• Hardware: All necessary installation hardware

Fitment:

• 2017-2026 Ford F350 Super Duty 2WD
• 2017-2026 Ford F350 Super Duty 4WD

The Timbren FR350SDJ Suspension Enhancement System is designed to strengthen the rear suspension on 2017-2026 Ford F-350 Super Duty trucks. Featuring Timbren’s patented Aeon® hollow rubber springs, this system delivers progressive load support to help manage rear-end squat, body roll, and sway when towing or hauling heavy loads. The rubber springs engage when additional weight is applied, improving vehicle stability while maintaining ride comfort during normal driving. This rear kit includes adjustable spacers to fine-tune installation height and ensure proper spring engagement. The system installs easily with a bolt-on design and requires no maintenance after installation. Backed by Timbren’s lifetime warranty, it provides dependable load support for demanding truck applications.