These are the adjustable length Johnny Joint® front lower control arms found in our RockJock® off road suspension system for the Jeep JL Wrangler. Arms are fabricated from 1.625" o.d. x .250" wall d.o.m. steel tubing, feature the 2 1/2" Johnny Joint® rod end on one end, and the 1 1/4" RH thread forged 2 1/2" Johnny Joint® and jam nut on the other end. Arms are finished in semi-gloss black powder coat and the forged ends are finished in gold zinc plating.