leave the cab on the truck, then weld in the new floor, the patch panels usually come in 2 halves. Or if your just making a rat rod use liscense plates galvanized roofing whatever. After you get the floor welded in pretty good. You can then take the cab off the frame if you want and weld it from the underside. You can do it with the cab off but you have to make sure to tack weld some braces in place first or your cab will get out of square and you will have a heck of a time getting your doors to close right.
Last edited by tracern1; 08/15/2012 9:12 PM.