Timbren FRSDE SES Rear Suspension Enhancement Kit for 15-26 Ford F450/F550/F600

Vehicle Fitment

• 2015-2026 Ford F-450 Super Duty Cab & Chassis 2WD/4WD
• 2015-2026 Ford F-550 Super Duty Cab & Chassis 2WD/4WD
• 2020-2025 Ford F-600 Super Duty Cab & Chassis 2WD/4WD

Fitment Notes

• Fits Cab & Chassis models ONLY - does NOT fit standard pickup bed configurations
• Fits both 2WD and 4WD configurations
• Rear axle application - mounts between frame and rear axle
• Replaces factory jounce stops / bump stops on frame
• Designed to work with factory ride height - for lifted vehicles, use Timbren SES Spacer Kit
• Does NOT increase GVWR - do not exceed manufacturer's Gross Vehicle Weight Rating
• For Severe Service applications (truck campers, salt spreaders), use Part# FRTTSDE instead
• Professional installation recommended but DIY friendly

Features

• Timbren SES (Suspension Enhancement System) - #1 selling load support solution
• Reduces rear sag, sway, and body roll when towing and hauling
• Progressive spring rate - rubber springs push back harder as load increases
• Comfortable ride quality whether loaded or unloaded
• Patented Aeon¬Æ hollow rubber spring technology
• Automatically adjusts to uneven loads and road conditions
• Zero post-installation maintenance required
• No air lines, compressors, or fittings to leak
• No drilling required - bolts directly to existing mounting points
• DIY installation in under 30 minutes
• Laser-cut steel brackets with precision bends
• Black powder-coated brackets for corrosion resistance
• Works in conjunction with factory leaf springs
• Protects against overloading, bottoming out, and spring failure
• ISO 9001 certified manufacturing
• Made in North America

Specifications

• Part Number: FRSDE
• Brand: Timbren
• Product Line: SES (Suspension Enhancement System)
• Product Type: Rear Suspension Enhancement Kit
• Kit Type: Standard
• Axle Position: Rear
• Rated Capacity: 12,000 lbs (Per Pair)
• Spring Material: Aeon¬Æ Hollow Rubber
• Bracket Material: Laser-Cut Steel
• Bracket Finish: Black Powder Coat
• Kit Height (Without Spacer): 8.25"
• Kit Height (With 1" Spacer): 9.25"
• Spacers Included: (2) 1" Rubber Spacers
• Drilling Required: No
• Air Lines Required: No
• Maintenance Required: None
• Country of Origin: Canada
• Warranty: Timbren Lifetime Warranty

Included Components

• (2) Timbren Patented Aeon¬Æ SES Hollow Rubber Springs
• (2) Steel Mounting Brackets (Black Powder Coated)
• (2) 1" Rubber Spacers
• All Necessary Mounting Hardware
• Installation Instructions

Product Description

The Timbren FRSDE SES Rear Suspension Enhancement System eliminates rear sag, sway, and body roll on 2015-2025 Ford F-450/F-550 and 2020-2025 F-600 Cab & Chassis trucks, providing a safe, controlled ride whether hauling heavy equipment or towing trailers. Featuring Timbren's patented Aeon® hollow rubber spring technology with a progressive spring rate, the system automatically adjusts to varying loads - pushing back harder as weight increases while maintaining comfortable ride quality when unloaded. Unlike air bag systems, the FRSDE requires zero post-installation maintenance with no air lines, compressors, or fittings to leak. Rated at 12,000 lbs capacity per pair and backed by Timbren's Lifetime Warranty, this bolt-on kit installs in under 30 minutes with no drilling required.