Your right very clean installation. They spliced the truck frame in just a head of the rear diff. Ton and 1/2 chevy cab, there is a CCKW transfer case in it. It has a Chevy front axle so there would be no way to have the front drive. The ratios would not match. The owner is going to restore it as is. Which in this case I think is an exellent idea.
Don G.