Fixite7
I believe the 54 optional turn signal cup on the column is slightly different from the later Task Force trucks. The signal arm on the 54 sticks out of the switch closer to 90 degrees from the shaft while the later design switch is angled up towards the steering wheel. This is to accommodate the different steering wheels. (older flat vs later dished)

1954 Chevy 1300 engine 235 (1959)
1955 (first series) Chevy 3100 engine 261 (1957)
1927 (other brand) Model T- engine 327 (1968)