It's very easy. You need a 6" C-Clamp to compress the piston and a large enough "channel lock" to turn the piston as it's held in the C-Clamp. Clamp it to compress & turn the piston Clockwise. Compress, turn, compress, turn. It shouldn't take too many turns and compressions to get it all the way in.
Prior to that, removing the pads are easy as well. Two 13mm bolts hold the calipers on. One of them has a wire connected to the ABS system. It's fairly easily unclipped. Be aware of how and where the wire it stowed and protected. It's really easy.
My problem is how to do the Front?
Remove the rear tire and wheel. Remove the brake spring from the brake assembly. Remove the brake pads. Reverse the process to install the new brake pads.
Lift the vehicle on a car jack, remove the tire, remove the brake shoe/calipers, and remove the old brake pads. Put in the new brake pads, replace the brake shoe/calipers, replace the calipers, and lower the car.
Lift the vehicle with a jack, remove the tire, remove the brake shoe/calipers, and remove the old brake pads. Next, put in the new brake pads, replace the brake shoe/calipers, replace the tire and lower the vehicle.
Just remove the old brake pads and insert the new ones.
Lift the car on a vehicle jack, remove the tire, remove the brake shoe/caliper and remove the old brake pads. Put in the new brake pads, replace the brake shoe/caliper, replace the tire and lower the car to the ground.
You will need to remove the tire and wheel from your 1998 Pontiac Grand Am. Remove the brake assembly spring from the brake pads. The brake pads will come off. Reverse the process to install the new brake pads.
Remove the tire and wheel from your 2003 Chevy Impala. Remove the brake assembly spring and the break caliper. The brake pads will come off. Reverse the process to install the new brake pads.
Remove the tire and wheel from your 1994 Chevy Lumina. Remove the brake spring and the break caliper. The brake pads will come off. Reverse the process to install the new brake pads.
Rear disc brake pads, no. Rear brake shoes, yes.
When changing rear brake pads on a 1999 Honda Civic safely raise and secure the car. Remove the wheels from both sides. Remove the caliper bracket and old pads. Replace with new pads.
Lift the car on a jack, remove the tire, remove the brake shoe/caliper and take out the old brake pads. Put in the new brake pads, replace the brake shoe/caliper, replace the tire and lower the car to the ground.
Remove the tire and wheel from your 1999 Mercury Cougar. Remove the brake spring and the break caliper. The brake pads will come off. Reverse the process to install the new brake pads.