Steve, so if I get the #'s, what am I looking for? My studies show that both the HO52 and HO72 rear will work, correct? I pulled up the '72 manual and it stated that with the big v8 and auto tranny, it is either a 4.10 or a 3.54. I hope it is the 4.10, because the 3.54 I believe would swing to the opposite side from where I am currently with the 5.14. The 4.10 would be ideal.
