Timbren Industries FR350SDJ Suspension Enhancement System for Ford - F-350

The Timbren Industries FR350SDJ Suspension Enhancement System provides progressive spring support for improved ride quality and increased load-carrying capacity. This hollow rubber spring system replaces factory bump stops and engages progressively as the load increases, providing smooth, cushioned support without the harsh bottoming-out common with traditional suspension systems.

Key Features:

• Progressive spring rate provides smooth engagement under load
• Hollow rubber Aeon spring design for maintenance-free operation
• No air lines, compressors, or adjustments required
• Prevents suspension bottoming and body roll
• Simple bolt-on installation typically completed in under an hour
• Engineered specifically for Ford F-350 applications
• Improves handling when towing or hauling heavy loads
• Lifetime warranty on rubber springs

Timbren SES kits install between the frame and axle, activating only when needed to support additional weight from cargo, trailers, or equipment. When unloaded, the vehicle maintains its factory ride quality. The durable Aeon rubber spring construction requires no maintenance and is resistant to road salt, chemicals, and extreme temperatures.