I had a truck front axle here that had the 5 lug car setup fitted. I was told that it was from a 54 car, and that to fit the car hubs to the truck axle, you needed to use the car brake backplates and spacers as well as the car hubs and drums.

Stuart.

1950 Chevrolet 3100 (occasionally working) truck:https://c2.staticflickr.com/6/5490/30684982201_6dc479d18d_c.jpg
1928 Chevrolet AB National Phaeton: https://c4.staticflickr.com/6/5573/30137792083_42886d30a4_c.jpg
1932 Austin Special Sports: https://c8.staticflickr.com/6/5793/30116567183_1520e67c4d_z.jpg