With SPC's rebuild kit you can replace the ball joint or customize the stud length for ride height altered vehicles. 7.12° Taper - Stud Length +0.25" Over OE. Includes: Ball joint boot, ball stud, ball joint race, washer, wave spring, castle nut and cotter pin. For ease of removing the old ball joint and installing the new/rebuilt ball joint use our Spanner Wrench #72120. Ball Joint rebuild kit - fits #97110, 97120, 97150, 97160, 97170. California Residents WARNING