The RockJock Johnny Joint® suspension system kit is a complete package that replaces all eight stock control arms and provides a 4" lift. It is engineered to provide unrivaled articulating flexibility and performance in the most adverse off-road conditions. The Johnny Joint® system keeps the tires in contact with the terrain for maximum traction. Kit includes 8 Johnny Joint® control arms, 4 4" lift coil springs, Johnny Joint® adjustable front trac bar, rear trac bar relocation bracket, front sway bar disconnects, rear sway bar extended links, and the RockJock front and rear poly urethane bump stop kits. Rancho RS9000 adjustable shocks sold separately. When used in conjunction with a 1" body lift and a 1" motor mount lift, this kit allows for efficient use of up to 35" tires.