Skip FIx
Well Known Member
My 78 Trans Am still has stock 28 spline 10 bolt axles and an Eaton posi 1.5s 60 fts 10.90s @ 124. Although 30 spline are in the future and what I put in the 81 Trans Am when the factory posi was worn out for it's future 455. There is a guy repoping the factory posi friction plates now.