nytrdr24
+1y
I have an 85 rx-7 rear in mine with disc, they are about the same size as the front, and the calipers have the hookup for the e-brake cables...there are a few pics in this thread
but as you said you want to keep the 6 lug, your options are a little different, keep the stock axle, and adapt the chevy rotors & such to work, or a late 80's-95ish toyota 4wd rear is the same width as ours, and downey offroad sells a kit that is pretty much what the guys were talkin about above, chevy rotors, monte carlo calipers, and a bracket....the upside to the yota axle is there are several different gearsets, and you can get lsd or a locker for them, whereas the stock mazda axle has only one gear offering, and no lsd or locker.