1972 GS what years will the 8.5 limited slip work from 1970-?????? I know it needs to be 28 spline, correct?
Any 8.5. The posi carriers and gears fit any 8.5 rear as long as the axle spline count is compatible. 1970 was the 8.2, different rear. The 1971 and 72 Buick Olds 8.5 rear used 28 spline axles and were bolt in axles. When I built the 71 8.5 rear for my car, I went with a 30 spline Eaton posi and 30 spline Moser axles. The 8.5 was used all the way into the 90's, but most of the later rears are c clip rears (like the GN's). Still the 8.5 parts will all fit unless the axle splines are different.
so a limited slip from a s-10 will work as long as its a 28 spline? btw, just had my blocks sonic tested they passed.....lol thanks for your help on that
Make sure this posi unit has clutches and isn't the gov lock kind that explodes when spinning it too fast.
