[&:] Looking for tech specs on a 85 Monte LS. Specifically did any one of these come with a posi rear end. Have one in back yard would like to put in my 86SS. As you can see from sig I have way to much power for one wheel peel, were talking about glazing one tire at 35mph on dry pavement. I know I still have stock tires, but would really like to have posi, seeing as I have a posible donor in yard. I did the both tires off the ground and turned the wheels and both go in same direction. Just not sure if it's because it's worn out (have seen it before) or it might really be a posi. No tag on it or in trunk. So any info on this would be greatly appreciated.

 

Found out the donor is posi