"54 3100"
If you have (or, ever want to add) a 1954 radio, be careful with the style replacement wiper you put in a 54/55st Chevrolet Truck (GMC truck is no problem - different speaker location).
None of the aftermarket electric wipers for 47-55st trucks work with a 1954/55 Chevrolet Truck radio's speakers.
LeeP, were you referring to those S10 wipers working in a 54/55st truck? If yes, that would be a good option.