RockJock's complete set of all 8 adjustable length Johnny Joint control arms for Wrangler JL and Unlimited vehicles provides adjustability in length on all 8 arms, enabling the caster angle and pinion angle to be adjusted.
The adjustable feature of these arms allows for upgrades to different lift amounts without needing to replace the control arms in the future.
To allow unrestricted movement, RockJock's Johnny Joint rod ends are used at both ends of all 4 rear arms, both ends of the front lowers, and on one end of the front upper arms.
Upper arms are constructed from 1.25 in.
o.d.
x .188 in.
wall DOM steel tubing and feature 1 in.-14 adjustable axle housing forks at the axle end and 1 in.-14 adjustable Johnny Joints on the rear uppers.
Lower arms are 1.625 in.
o.d.
x .250 in.
wall DOM and feature 1 1/4 in.-12 thread adjustable Johnny Joints, while front lowers have a welded-on stud provision for retaining the factory brake line attachment brackets.
All arms are powder coated semi-gloss black and fitted with zerk fittings for greasing.
It is also a good time to replace the stock front differential housing bushings with our RJ-301000-103 Johnny Joint front end housing conversion kit to add Johnny Joints to that point as well!
