Authentic Made In America RoadActive Suspension HD rear leaf spring upgrade by (RAS)RoadActive Suspension. Only listings with the RAS mark are Made in America with premium rigorously tested and proven for durability since 1998.
Reduces Squat & Bounce – Reinforces rear leaf springs by up to 50% for superior towing and hauling performance.n and improve squat by up to 2-3''
3-in-1 Suspension Upgrade – Functions as a helper spring, sway bar, and traction bar in a single, cost-effective solution.
No Maintenance, No Adjustments Required – Unlike air-based systems, RAS installs in under an hour and works immediately with zero upkeep.
Proven Performance & Durability – Designed for heavy-duty towing, hauling, and everyday driving with long-lasting reliability.