I have been trying to figure out what is going on with some frame/body flex when I put my car on the lift. So I have a 2 post lift and position the arms under the frame behind the front wheels and in front of the rear wheels when I need to lift the car and do any work under it. The problem I have is that when the car is lifted from these points the front clip starts to sag downwards and the fender/door gap gets small at the bottom and big at the top, at least 1/4", thus indicating the frame is flexing/bending right under the firewall. The body and front clip sheetmetal have all new bodymounts and they are all tight, I have double checked every one. I am doing a resto on the car and do not want to have this issue once everything is painted and put together. Does anyone else see this happen with their car?