1948 FORD F-100Up for sale is a 1948 Ford F-100 with a custom built extended cab. This truck is all redone and probably a 1 of 1 truck! Custom interior, paint job, wood bed floor, vintage air AC, etc. The truck has a Ford 5.0 engine from an older Mustang. There is a lot of money put into this truck. I am not even positive on everything done to it but there is a folder with all the manuals and diagrams for everything on the truck.