Measure the vertical distance from the rear axle centerline to the fender lip. Raise the front of the car on a level surface and support it with jackstands, then raise the rear by jacking under the differential. Place two jackstands under the torque boxes or the rear of the subframe and adjust the jackstands' height so the car's rocker panels are level to the ground. Lower the rear axle until the shocks top out, then take off the rear wheels, stock sway bar, and quad-shocks from the axle. Unbolt the rear shocks from the axle and be careful not to allow it to droop too far, which could damage the brake line. Remove the rear springs and place the jack under the center of the rear axle and raise it until the jack begins to lift the axle, which will unload the rear shocks. Unbolt the rear shocks from the axle and raise it so its centerline to the fender lip is the same as the previously taken measurement. Place the jackstands outboard on the axle under the control-arm mounts, which will mean that the car is supported at six points. Then, as shown here, rest the sway bar on another jackstand (or blocks of wood; we used a screw jack since the car was on a hoist) with the arms facing forward.