47-55.1 1949 gmc panel production number question..how many?

[1949gmcpanel]

I have a 1949 GMC PANEL..i cannot find the production number of my specific model. Anyone know how many were made in 1949?

Im looking to sell my panel possibly but dont want to put a roll cage in if its a low production. The new motor i want to take to the track but have been told my model is pretty rare and i should leave it. I really want to go run it at track w the new engine but know i will only be able to make pass or before im thrown out for no cage.

Any help on production numbers would be appreciated.