Adjust pinion angle after installing suspension components with Rancho this leaf spring shim kit. Made of aluminum for durability, the kit includes two shims that feature a 2.5 Degrees shim angle. Product Features:COMPATIBILITY -- Universal fit to work with most aftermarket lift kitsSPECS -- 2.5 Degrees Shim angle, 2.38-in. width and sold as pairCHANGE PINION ANGLE -- Allows adjustment of pinion angle after installation of suspension componentsENGINEERED TO LAST -- Made of durable aluminum for long life