Wanted 8.25 rear

I have a rear end , minus brakes . It will need a ring and pinion . factory sure grip with 3.91. Broke a tooth off the ring gear. Located in Holiday Fl.
Is it an 8.25 or a 8.75? I have the brakes already and the gearing needs to be changed anyway to something like a 3.23 so it sounds perfect. Is it otherwise in good condition and what are you asking for it? I only live about 5 miles away.