I have mentioned this before and it may be worth repeating. Many times the same part is for MANY years. And while they have no listing for the earliest model they will many times have the parts number for the latest year model.
I've done that too, to varying levels of success. Finding Brake parts for a 1946 3/4 ton is an adventure, even if you have the guy look at the 1952 parts... The book starts when they switched to Bendix from Huck. :mad:
Though, I was completely shocked when my favorite FLAPS had a fuel pump for a 216
in stock... Everyone else had to order one in.