The Prothane rear leaf spring bushing for 2004–2006 Ford F150 replaces factory rear leaf spring bushings with a colored polyurethane option specified for that application. It is intended to restore the bushing interface and maintain spring location and movement characteristics for the rear axle; choose the correct left/right position and follow vehicle service guidance when installing these bushings.
Prothane 04-06 Ford F150 Rear Leaf Spring Bushings - Red