GM Repair Questions? Ask a Mechanic for Answers ASAP
You will first need to remove the axles, then you will be able to remove the rotors:
Remove the brake caliper and the brake caliper mounting bracket as an assembly.
Rear Axle Hub
Remove the axle nut retaining ring.
Remove the adjusting nut using the J2222-C.
Remove the adjusting nut.
The lug studs need to be pressed out to separate the rotor and the hub