The SuperPro rear leaf spring shackle bushing stabilizes the leaf-spring connection to reduce rear-axle movement that can cause wandering and instability under braking or when towing. OE rubber bushings are intended for standard ride height and loads; upgrading to SuperPro bushings provides a firmer, more reliable mounting for heavy-duty use and helps the rear end handle demanding conditions.
SuperPro Rear Leaf Spring Rear Shackle Bushing