Thanks everyone!
Mike B.: Too bad my local place stopped dealing NAPA. Will need to deliver or travel to use NAPA again.
Gdads51: Yes, it is. A 1953 GMC 9700 3-ton. The 9700 is Canadian, possibly 450 in the states? Don't remember the US Chevy equivalent. The plate in the door says 9783 HD. There seems to be a lot of numbers given to these trucks and gets confusing when trying to cross reference them. Though it's to be noted that I have a 262 i6 from a '66 Chevy school bus. The rest of the mechanicals is stock, though.
