Rock Jock Johnny Joint suspension lift kits are complete systems offering maximum traction. These packages replace all eight stock control arms and provide a 4 in. lift that is engineered to provide unrivaled articulating flexibility and performance in the most adverse off-road conditions. Some of the kits include adjustable Johnny Joint control arms and 4 in. lift coil springs. Give your rig one of these Johnny Joint systems from Rock Jock and keep your tires in contact with the terrain.Rock Jock suspension lift kits include:* (8) Johnny Joint control arms* Johnny Joint adjustable front trac bar* Rear trac bar relocation bracket* Rock Jock Antirock front sway bar* Rear sway bar extended links* Rock Jock front and rear polyurethane bump stop kits