I have owned my Auburn posi 12 years now, I have had 3.55 and 3.90 gears with it.
Some strip time, mostly street.
I use 80/90wt oil and 2 bottles of the GM additive.
I have never had a problem of any kind.
The car is a 69GTO with 8.2 BOP rear.
__________________
color me gone
|