Torx is a 50 and they are really tight.
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Front or rear, remove wheel, remove caliper, remove caliper bracket, remove rotor.
Begin by removing the tire and wheel from your 2000 Chevy Lumina. Remove the brake spring and the break caliper. The rear brakes will come off.
take the wheel off, remove brake caliper, remove brake caliper bracket and pull the rotor toward you or use a hammer. its not bolted on. it just sits on there.
in order to remove the rear caliper, you first remove the parking brake cable using a 14mm socket to remove the bolt. After removing the parking brake you can remove the caliper carrier, using a 17mm socket to remove the two caliper carrier bols this allows you to remove the caliper from the rear rotor, you can slide the caliper off of the carrier to remove it completely. to remove the rotor you can use a soft faced mallet and gently tap the inside of it and it should come right off.
Remove the caliper retaining bolts from the inside of the caliper. Lift the caliper off the mounting bracket and over the rotor. Slide the old inner and outer brake pads out of the caliper, and slide the new brake pads into the caliper.
synthetic gear oil
you can get the tool that removes the rear calipers from any autozone or advance auto parts. they rent it to you and you leave a deposit. the tool is designed to turn the caliper as it is being pushed in. if this tool is not used the caliper will fail.
remove brake drum or caliper, remove caliper mounting bracket if nessesary. unplug electical connecter from wheel sensor on the back side of knuckle. remove 4 hub to knuckle bolts, remove the hub and bearing assembly!!
should be the same as most Chevy rear ends. Opwn the differential. push the axles in. remove the retainers. and the axle comes out. Providing wheel, brake and caliper or drum removal as well.
Two mounting bolts at rear of caliper - then slide caliper off rotor