Hello Actually, it's a '36 Frame going under my '40 p/u. I wanted to ensure the frame is square and not twisted. Using Westcott's instruction- link here : : http://www.wescottsauto.com/WebCatalog/Tech/2009_S_217-224_Technical.pdf I used this method for twist. Two stands at the back and one at the front to "float" the frame. I used the carpenter level shown and it checked level at several points along the frame until I got to the front engine mount cross member as pictured. The level is out, as shown, at that point only. How would you guys interpret this? typical factory flaw? or out by a mile for safety concerns. Or is this a poor method and inaccurate. Thanks in advance for your comments.