is in my car it is a 87 l98 iroc. with a g80 rpo code the posi is gone i think. it will lay 2 black stripes but when the car is jacked up i can grab the tire and turn it with the car in park. how hard is it to rebuild the posi unit. second how strong is it.

edit:
i did some leg work and i think it may be a 9 bolt but there seems not to be much out there about them

how can i help you guys help me what info you need

i dunno much bout 9 bolts but here...

http://9bolt.com/