Wow, that frame is toast! What I'm wondering is how much is left of the cab floor if the frame is that bad. I agree with Otto that an AD frame would be the easiest route to replace that frame.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
