RockJock's Johnny Joint® rear upper control arms for the 1997-2006 Jeep TJ Wrangler and LJ Unlimited vehicles provide length adjustability allowing pinion angle to be adjusted after the installation of a suspension lift. Additionally the adjustable feature of our arms allows your vehicle to be upgraded to different lift amounts without having to replace the control arms in the future. Arms are made from 1" x .156" wall D.O.M. tubing, feature a Johnny Joint® rod end at both ends for maximum articulation, are powder coated semi-gloss black, and include zerk fitted grade 8 mounting bolts.