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When changing the rear brakes on this vehicle, you will require a special tool - Rear Caliper Adjuster Tool - to seat the piston back into the caliper. It allows you to push and turn at the same time. You can usually rent this tool from any local "big chain" parts store.
I've wrapped up the procedure, with images, into a PDF file for easier viewing/printing.
Download the procedure HERE
When replacing the rear brake pads there should be no reason to open any bleeders, so there will be no brake bleeding involved.
Follow this link, i answered it here: