Yes Tim you can see a cut-away of two styles for '54 in sec. 11, sheet 8.00 in the Assemblly manual. Looks like the series 5000 trucks had a die cast emblem
Both of the ones in question here are on 1950's. If I had a stubby clutch head driver about a half inch long I think I might be able to get at the screws.
DG


Denny G
Sandwich, IL