|04-06-2006 06:04 AM|
|04-06-2006 02:02 AM|
Don't know for sure, but this may help
|04-05-2006 06:59 AM|
Oe Posi Numbers
Does anyone here have a original GM parts number for a 8.5 28 or 30 spline posi differential case? Any years between 85-88. I believe that the 30 spline will fit right in were the 28 spline was only you would need the axles to go with it correct?