Did u guys ever stop to think that maybe the diff isn't out but the body panels are. One way to find out is a 4 wheel alignment by someone that knows our cars. By shimming the diff u may be causing it to dog track slightly. 1 wheel will be toed in while the other will be toed out. I see it all the time. 72 blue blue is right, I forgot to mention that the thrust angle will be off also from shimming the diff, unless ofcource u corrected it. Lol. Kim