Our 59-64 Cadillac rear wishbone replacement is a 100% bolt-on OEM style kit designed to lay a 29" tall tire. The revised wishbone features a high angle spherical joint with a 17-4 stainless steel taper pin that provides increased strength and bind-free movement through the entire suspension range. Whether you are looking for the ultimate slammed stance or merely upgrading worn out stock components, our kit has you covered.