Removal (Cadillac)

Raise vehicle on hoist so rear axle is supported. Remove shock absorbers. If equipped with Electronic Level Control, remove stabilizer bar-to-lower control arm bolts, and remove stabilizer bar. Remove one bolt securing junction block to top of differential. Disconnect brake lines from clips on axle.
On ELC vehicles, disconnect link from leveling valve arm. Place jackstand under nose of differential carrier and remove lower control arm-to-axle bolts. Disconnect drive shaft from pinion flange and support drive shaft with wire. Remove jack stands.
Remove upper arm pivot bolts at axle. Disconnect left side parking brake cable at equalizer. Disconnect cable at frame by removing clip. Slide cable through hole. Remove cable from clip at center of rear crossmember. Disconnect cable at connector located at left of frame. Support both frame rails at rear of frame. Lower axle enough to allow removal of coil springs, and remove springs.
CAUTION: Do not allow axle to wind-up as it is lowered, as springs may snap from their seats and cause injury.