I have a 1977 vette and the right rear wheel lays out slightly. When I say this I mean it is not bad but it does lay out like something is broken in the rear end. It is wearing the inside of the tire faster than the other portion of the tire. I can't seem to track down what is wrong here I was thinking maybe a wheel bearing, but it seems to check out. I don't know the workings of the IRS well and it doesn't seem like there are many good mechanics left in my area that can answer the questions that I don't know. Anyone have any ideas what I should check or how to fix this? Thanks for the help!

 

Not seeing how bad it is it may just need an alignment. Have you had all four wheels aligned lately? Mine 72 was toed in a litlle and the alignment brought it right back.

 

First jack up that wheel and check for bearing play. If there is none, then you need to adjust the camber which is done by rotating the cam on the inner end of the strut rod. A factory service manual is very helpful if you're planning on doing some of your own work.