8 3/4 bolt pattern question

82-89 Chrysler M body rear brakes 10"x2.50" from backing plates out will bolt up to the 8.75 axle, and parking brake will hook up. Go to Doctor Diff for A body width BBP 8.75 axles. All this is direct bolt up and will give you the larger bolt pattern, 1/2" studs, and all the brake parts are readily available including heavy duty finned drums.