Timbren Industries FRTR350HD SES Suspension Enhancement System

The Timbren Industries FRTR350HD SES (Suspension Enhancement System) is a heavy-duty suspension upgrade designed to provide superior load support for trucks and commercial vehicles during towing and hauling operations. This system utilizes Timbren's patented Aeon® hollow rubber springs that replace or supplement factory bump stops to deliver progressive, load-activated support.

Key Features:

• Aeon® hollow rubber spring technology provides progressive cushioning that engages automatically under load
• No air lines, compressors, or maintenance required—100% mechanical operation
• Reduces squat, sway, and body roll when towing trailers or hauling heavy cargo
• Helps maintain proper vehicle geometry and headlight aim under load
• Improves braking performance and steering response when loaded
• Will not leak, rust, or wear out like air bags or traditional suspension components
• Engineered specifically for Ford F-350 applications (verify vehicle compatibility)
• Direct bolt-on installation—no drilling or modifications required

The FRTR350HD system is ideal for contractors, fleet operators, and recreational users who regularly push their vehicle's payload capacity. The self-adjusting hollow rubber springs compress progressively as load increases, providing exactly the right amount of support when you need it while maintaining factory ride quality when unloaded.