Fox, No, No, No, maybe, maybe. The 54 has a totally different grill. The hood may be the same but the emblems are not, the inner fenders might be the same, ask Tim, the radiator might work, but each year is stamped with the year the truck was made.
If he knows his truck, he knows not to purchase things that are not proper for his vehicle. If not, he will learn the hard way. Nice of you to help him out with proper information. Tim is our resident expert 54 man. He knows MUCH more than most of us on that vintage.