Low Friction Lower Ball Jointball Joint, Greasable, Lower, Press-In, Low Friction, Hardware Included, Gm A-Body / B-Body / F-Body, Eachpress In Knurl O.D. Is 2.098. Length From Housing Step To End Of Threads Is 3.435. Threads Is .910 Long. Taper Is .992 Long With Small End .635 And Big End .780.Mounting Stylepress Intake A Partnoupper/Lowerlowergreasableyeslow Frictionyeshardware Includedyesboot Includedyeshousing Materialsteelhousing Colorzinchousing Finishoxidequantityeach