My suggestion would be to get an original master parts book for your truck. I found my NAPA could do a lot with the OE part number on my '52 3 ton GMC. I found most all the mechanical part either there or Carquest with the GM part number. Carquest didn't even charge shipping on the part they had to bring in from an out of town warehouse. As always a good parts man is gold, someone who knows where the paper books are and how
to use them. On your truck they may be able to look parts up by application, my 3 ton was pretty much going off the part numbers I supplied. Good luck.
Scott


1947, 1950, & 1952 Chevrolet 1/2 ton
1952 GMC 450 series Cab Over Engine
1946 Chevrolet 2 Ton