Skyjacker Differential Mounts UDAF Replace your old or broken U-bolts with these high-strength Skyjacker replacement U-bolt kits. These kits will work with stock or aftermarket leaf spring packs. 4 U-BOLTS/916X212X7 SQUARE U-Bolt Kit; Round; 9/16 in. Dia.; ID Length 7 in.; ID Width 2.5 in.; AxleU-Bolt
