The rear sway bar, which is held in place with four bolts, comes off next. Once it's out, the stock lower control arms can be disconnected from the axle. Then the arm is lowered to allow removal of the rear springs and the arm's chassis pivot bolt. To do this, support the control arm near the axle mount with a jack and remove the lower-control-arm pivot bolt from the axle end. Slowly lower the jack to release the spring tension. Be careful not to do it too quickly or the spring might become dislodged and fly out. Once the spring is completely uncompressed, take it from the car. Then remove the chassis pivot bolt from the car and detach the arm.