I don't know if this is the proper term. My 74Z is wearing the drivers side rear tire on the inside, I have looked at it on the lift but I don't see any way to adjust the camber. When I put a level on the rear wheels it looks like both rear wheels are 3/4 inch wider at the bottom than the top. Could the springs be getting weak or is there something I should look for. The passenger side shows normal wear.