While doing some surfing through the HAMB I stumbled upon the 60-66 topic. I have a very unusual '64 C10 that I thought might be of interest to the readers herein; My '64 is a very rare Club Cab, it is a variant of the Sub's having a back seat utilizing the rear portion of a Sub and the big back window panel of a pickup. I have been told that the truck is "a Railroad Truck", a special build for the railroads. To date I have found five of these trucks located in various parts of the US. I put the cab on '98 Chevy C-10 Z71 extended cab chassis, complete with the steering, disk brakes, etc.. The engine is a 98 5.7 V8, trans 4L60, diff is also a 98 10 bolt. In order to make the chassis fit under the 64 body we had to harvest the cowl and floor pan back to the front portion of the front seats. This allowed us to use the '98 steering column, and power brake booster.