I'm looking to rebuild my rear in my '71 Torino. I have a 351c-2v with a C4 and a 9" open dif. with a 2.73 gear, so I'll assume the axels are 28 spline (correct me if I'm wrong). If this is the case I'll need to know the length of the axels so I can order new 31 splnes. The problem is every site that shows axel sizes shows 2 sizes for '70-'71 Torinos. Does anyone out there know what I need. All help is appreciated.