Not sure, but I doubt you can use the 49-54 Chevy car spindles on an original Ford axle. As Mike suggests, an aftermarket axle designed to use the Chevy spindle is the way to go. A set of knigpins for a 49-54 car, and a 49-54 Shop manual are all you should need besides the axle and spindles. Axles are available in either I-beam or round tube construction from a variety of sources. Speedway and M.A.S. are good sources.