2001-2010 GM HD SILENT SUPPORT SERIES SERIES HELPER SPRING (61911) caster-shim and a composite-bushed upper mount

and a composite-bushed upper mount isolates noise and vibration

Hand-crafted and TIG-welded construction for superior durability

Weld on Application

1-year manufacturer's warranty

Replacement polyurethane bushing kit for BDS frame and shackle bushings on 1987-1996 Jeep Wrangler YJ

2001-2010 GM HD SILENT SUPPORT SERIES SERIES HELPER SPRING (61911) caster-shim and a composite-bushed upper mountSilent Support System Series up to 2500 lbs. Level Load capacity. Great for ton and ton applications. Over axle mounting design makes for a quick and easy installation Silent Support System Series Helper Springs for various Chevrolet and GMC Truck Applications Features & Specs Easy installation