Howe ball joints offer very low resistance while still fully capturing the ball to maintain alignment. All Howe ball joints are user rebuildable with an unmatched selection of interchangeable studs and housings. The alloy steel ball studs that are process coated for low friction and long wear. The XD Housing is 300% stronger in end of travel load testing. The added strength is in the mil-spec alloy housing. The cap is held securely in place with a hex lock and snap ring.All Ball joints come standard with a "0" length stud that is equal to stock length unless stated otherwise. Ball Joints do not come with a boot, if you require a boot they must be purchased separately.Fits K772+ Stock Application: 63-71 GM Truck. Stock Application: 65-89 Chrysler, Dodge, Plymouth. All Asphalt Late Models,Dirtworks, Troyer Ford steering uppers. Also fits Pinto upper taper.Pit Stop USA offers Howe XD Precision Upper Ball Joint w/ +.500" Stud - Screw-In - Fits K772 22320X at low everyday prices. Be sure to check out all of our products from Howe Racing Enterprises including Howe Screw-In Upper Ball Joints;Low Friction Upper Ball Joints.