nopark

I would think that you should be able to use pre 65 brakes if it truly is an 8 3/4. Are you sure that it is an 8 3/4 and not the early 8 1/4 (from the 50s, it looks just like an 8 3/4)? If you don't have park brake capability with the rear brakes the rear end must have come from something in the 50s (not sure when they wen away from the park brake on the trans but I would guess 58 or 59) that had the park brake on the trans output, and I beleive they were all 8 1/4s.