The Timbren Suspension Enhancement System (SES) rear kit, part timFRSDE, is designed for the 2015 Ford F-550 Super Duty to improve load support, handling, and ride stability. Built with Timbren’s proven rubber spring technology, this suspension upgrade helps reduce vehicle squatting and sagging while supporting up to 12,000 pounds of weight capacity. It is an effective solution for trucks that experience suspension settling, trailer sway, or instability under heavy loads.
Unlike air-assist suspension systems, the Timbren SES kit uses durable rubber cushions that absorb road shocks and automatically adjust to changing loads and road conditions. There are no airlines, fittings, compressors, or other components that can leak or require regular maintenance. The maintenance-free design provides dependable suspension support and long-term performance for demanding towing and hauling applications.
Installation is straightforward and requires no drilling, cutting, or routing of air lines. The kit bolts into place using basic hand tools and can be installed in minutes, making it a practical upgrade for professional and recreational truck owners. Designed and manufactured by Timbren, a leader in rubber spring technology since 1965, this rear suspension enhancement system is backed by a lifetime warranty and engineered to provide improved control, comfort, and peace of mind.
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