GM did not sell a stainless-steel truck grill in 1954/55.
Greg_H has/had what he thought was a stainless steel 54 grill, but I think he now believes it is not stainless - Greg?
How do you know the grill you found is stainless? Try a magnet on it - the magnetism should be none or noticeably weak, if it is stainless steel.
Is any part of the grill painted?
Do you have a photo?
