[monzaz]

Yah, I do not think there is a full spool available for the olds/buick/pontiac 10 bolts. auburn I think makes a mini spool that might work. Just have to be careful you have the correct angle spline or the axles spline teeth will be loose in the side gear/block of the mini spool. If they are using a chevy 8.2 which would probably work in the 8.2 early buick units because they have th esmaller diameter cross shaft like a chevy does. The 68 and later and the pontiac cross shaft pin is larger .795 in size. like a 8.5 size.

SO... all this said NO a mini spool will not work in your posi unit. you need a open carrier I astually have a 3.36 3.55 and up OPEN carrier that will work in yours if you need better gears and want to try a mini spool set-up. Jim