Who has Dr. Diff 8 3/4 rear discs? Pt. 2

I have Dr Diff econo rear discs on both my Mopars. The Mustang calipers adjust by turning in and out the caliper piston. I push back the rubber boot and carefully turn it with channel locks although there is a special tool available as well. Most chain auto parts stores lend it to you with a deposit.

The drum/drum distribution block is the correct part for disc/disc brakes.

Is the rod that goes from your brake pedal into the back of the master cylinder correctly adjusted?

Is the opening on the caliper that your pads fit into evenly centered on your rotor? I have had to use thin grade 8 washers to center mine. I had to bevel the lug nut openings on the rotors to allow the rotor to seat correctly too.

Also, I found it easier to run a couple lug nuts with larger opening washers down on the wheel studs to hold the rotors securely while I inspect everything.