dsraven,
Thanks. Yes it is a task force truck. This cab cannot be salvaged. The rust is behind the factory pinch seams, and no amount of blasting could get at it. Customer really wanted to salvage it but I assured him the rust could not be fully contained. Plus the floors, corners, glass channels etc are all rotted. So, i will cut out the dash, save the vin tag and scrap the rest. Sounds like my initial hunch about the cabs being identical--except for the dash--was correct. I am waiting to hear where these are manufactured. I'm suspecting China, but who knows. I inquired about having them leave the dash out but they said no--it is paid for and drop shipped, which makes me think its Chinese.
Customer also wants me to shorten the frame and make this into a short bed. I'm fine with that, since I'm already going with the Ford 9"--I just don't think he realizes how labor intensive it is to do correctly.