Thanks for the Denny Graham door pic and the tcledeman pics of his 54 door seals.
The rubber profiles that I see in these pics are not even close to the old rubber seal that I removed from my 48. It was a separate pc and different from the rubber what was on the rest of the door.
And, as said previously the 47-49s have different cab and door seals that the 50+.
I found that LMC Truck sells a Lower Door Seal, part #30-2335, that is for Chevy GMC 47-49. It is on page 12 as Item 19. The rubber seal for years 50-55 is a different part number.
