Timbren 2015 Ford F-550 Super Duty Base Rear Suspension Enhancement System

This SES Suspension Upgrade replaces the jounce stop on the frame. Its unique design ensures superb stability for top-heavy loads like truck campers or salt spreaders. It features a single-convoluted Aeon® spring that resists weight more aggressively, eliminating squat, sway, and roll. It offers a comfortable unloaded ride with a ½” to 1 ½” gap between the rubber spring and the vehicle’s frame after installation. Unlike air bags, it requires zero post-installation maintenance and is durable enough to last under all loads and weather conditions. DIY installation is possible in under 30 minutes.