I have a buddy that just bought a 67. It came with air shocks on the rear and was up in the air quite a bit. We were going to lower it down and noticed that the drivers side tire would hit the quater lip if lowered. However, the other side had about 3/4 clearance... Anyone ever had this problem? We are not sure what is causing it to be that far off center. Frame does not appear to have been hit or bent..