Timbren SES Rear Suspension Enhancement System for 1970-2004 Ford F-250 HD and F-350 (FR350SDE)

Fits select 1970-2004 Ford F-250 HD and F-350 / F-350 Super Duty.

The Timbren SES (Suspension Enhancement System) is a heavy-duty solution designed to eliminate vehicle squat and sagging under heavy loads. This rear suspension kit replaces the factory bump stops with high-performance rubber springs that provide additional support and stability without the maintenance requirements of traditional air bags. Unlike air systems, there are no air lines to route or fittings to leak, making this a fit-and-forget solution for towing and hauling.

By absorbing road shocks and automatically adjusting to uneven loads, this system significantly reduces trailer sway and improves overall vehicle stability. The progressive rate of the rubber springs ensures a smooth ride quality when empty while providing firm support when loaded. Installation is a straightforward bolt-on process using basic hand tools, requiring no drilling into the vehicle frame.

• Eliminates vehicle squatting and sagging under heavy loads
• Improves handling and reduces trailer sway for safer towing and hauling
• Maintenance-free design with no air lines, fittings, or compressors
• Straightforward bolt-on installation into factory mounting points; no drilling required
• Durable rubber cushions absorb road shocks and improve ride stability
• Manufacturer Part Number: FR350SDE
• Backed by a Limited Lifetime Warranty