RockJock

RockJock builds off-road suspension and steering parts for Jeeps and the Ford Bronco, and is known for its Antirock sway bar and the Johnny Joint rod end. Lower HQ carries over 300 RockJock parts, from complete sway bar kits to the individual bushings and rod ends that keep them working.

What we carry from RockJock

  • Antirock sway bars: over 60 trailing arm and sway bar kits plus 18 standalone sway bar kits, with forged chromoly, fabricated steel and billet aluminum arms, bars by spline count, bushings and frame brackets.
  • Control arms and Johnny Joints: 48 control arm kits with adjustable upper and lower arms, plus weld-on Johnny Joint ends and housing kits for custom links.
  • End links: over 40 adjustable sway bar end links and link kits with heim or sealed rod ends in lengths from 6 1/2 to 12 1/2 in.
  • Trac bars and brackets: Johnny Joint trac bars and geometry correction axle brackets.
  • Currectlync steering: 11 drag links, rod end cartridges and stabilizer brackets.
  • Leaf spring parts: boomerang shackles, HD spring plates with shock mounts, plus bump stops, coil springs and shock mount relocation kits.

Popular vehicles

Almost everything here is Jeep, with the newer Bronco catching up. In order of how often they appear:

  • Jeep Gladiator JT, including Mojave
  • Jeep Wrangler JK and JKU
  • Jeep Wrangler JL, including Diesel and 392
  • Jeep Wrangler TJ and LJ
  • 2021+ Ford Bronco
  • Jeep Cherokee XJ and Comanche MJ
  • Jeep Wrangler YJ and CJ

How to choose

The Antirock is a soft, long-arm sway bar meant to keep a crawler stable on the road and at angles while still letting the axle articulate, so you do not have to disconnect. Pick the kit for your chassis and axle end. Arm material changes strength and weight more than feel. Bar diameter and arm length set the rate: a thicker bar or shorter arm is stiffer.

For control arms, adjustable arms let you correct caster and pinion angle after a lift and center the axle. Johnny Joints are greasable and allow more rotation than rubber bushings with less harshness than a heim joint. Check lift height ranges on each listing.

After 2.5 in. of lift or more, a trac bar or geometry correction bracket helps keep the axle centered and limits bump steer. Size end links to the new ride height so the arm sits roughly level at rest. If you run big tires, Currectlync steering is the upgrade over a factory drag link.

Price range

Most RockJock parts run from about $40 for end links and rod ends to $900 for complete sway bar and control arm kits, with a typical part near $200. Small hardware starts around $6 and full kits top out near $1,950.

RockJock FAQ

What is a Johnny Joint?

RockJock's greasable rod end with a ball and urethane bushings. It allows plenty of misalignment while absorbing more vibration than a solid heim.

Do I need to disconnect an Antirock on the trail?

No. It is designed to stay connected and allow articulation while still controlling body roll.

Are these weld-on or bolt-on?

Both exist. Many kits bolt on, while Johnny Joint ends and some brackets require welding. Each title says which.

Browse lift kits, shop suspension by car, or check which suspension do I need.