Now that the car is in the garage instead of the nieces barn, I have finally had a chance to start looking things over. I just discovered that the rear end is a 7.5 non limited slip 2.73 gear ratio differential with 4 lugs and drum brakes removed from a ford Fairmont maybe 1979.

This is not going to work. So now we go looking for a suitable rear end. Any suggestions? I think that I need to look for a 8.8 from maybe a 1993 mustang gt with 5 lugs, disk brakes, and limited slip.
