SPC Performance XAXIS Rod End Ball Joint npt_logo All Pro Pools. Get 45deg of articulation when you build new or replace aftermarket joints with these forged steel alloy threaded receivers and xAxis sealed flex joints. This assembly has LH 3 4" 16 threads, takes a 5 8" bolt, and is 2. 375" wide. It comes with a jam nutfor your convenience and is a perfect upgrade for Jeep TJ and JK lower control arm bushings on Jeeps that have had their Lower control arm bolts upsized from 14mm to 5 8". The kit comes with everything you need to replace upgrade your worn joints. This assembly utilizes a snap ring for positive retention and allows for easy replacement. (Is your jeep running OE sized 14mm bolts on the lower control arms? Check out our joint with standard hole size of 14mm, p n 15735.) California Residents WARNING