Jim, the cab on this one is a resin piece I picked off Ebay, it's actually a Jimmy Flinstone piece and is really nice !! The beauty of it was the price with shipping was less then $20.00 US to Canada !! A real baragin. The scale is bang on , alot of great detail and all the pieces from the Revell 1950 pu kit fit perfectly, ie grill ,galss etc. Wil reqire some modification of the interior tub. I was going to start working on converting the pick up cab into the COE until I found this one. Not a thick resin either, almost completely free of flash. Very distinct body lines as well. The chasiss rails I am not sure what they are from as I bought a junk box of kit parts a bout a year ago off ebay. The game plan is to modify the kit flathead and build into the venerable 337 hp for this one and also for the 50 F8. Running gear will be bits and pieces from the parts box.
Rick