Doing the floors, I just kept a jack under the pillar to keep it close to where it should be, because I still had the floor support bolt holes to locate it with. But I also took a measurement from a door hinge to the bottom of the rocker to make sure it went back in the same place. Also hung the door before welding the rocker up to verify the gappage. Everything seemed to by fine with the cab roof, but I thought that it had sprung when I sighted down each side of the cab (front to back, lining up the front pillar to the back side of the cab) to compare them. I saw that the drivers' side pillar was at a different angle and seemed to be out a t the top, so I put a come-a-long on it and pulled it in until both sides looked even. Got the patches put in and was putting the roof skin on and had to shave the drivers side front corner to make it fit; so it had always been that way and not sprung after all... Which is fine, I know that when this is done mine will be the most critical eye and if I had seen that pillar at a different angle then, it would drive me nuts. I also put the old windshield back up to it to verify that it wasn't too drastically different. I think I remember, during disassembly, that that corner didn't fit the glass too well.
