Hi, I just picked up a 44' ford truck cab for a rat project. is this cab basically the same as the the late 30's besides the body lines that slightly changes? is the late 30's frame the way to go. I plan on making my own 2x4 frame rails and zing it. I would just like to have a style of frame to kind of copy. I hope this makes sence. im trying to build as much as i can without buying to keep the costs down. this is my first rat project, but i am very mechanical. any help would be great. thanks