All that I have seen had 3 spokes. In '57 (you sort of asked) the steering wheel was dished.
Bill - thanks. I did include the '57; I thought I remembered some of the Task Force trucks using the '54 wheel, but wasn't sure if they all did.
Frank54
Frank McMullen 1941 Chevy dump truck 1949 GMC 100 pick-up 1954 Chevy 3600 pick-up 1955.1 4400 dump truck 1941 De Soto & other MoPars 1928 Model A F**D Special Coupe