The Timbren Suspension Enhancement System for 2001 Sterling Truck Acterra 5500 rear suspension is a bolt-on rubber spring that cushions road shocks and adapts to varying loads to improve ride control. Designed for Reyco/Freightliner rear suspensions with more than 5 in. clearance, it supports a 17200 lb capacity for towing and hauling. Installation uses basic tools, requires no airlines or drilling, and includes a lifetime warranty.
Timbren 2001 Sterling Truck Acterra 5500 Rear Suspension Enhancement System