Nathan - Lots of our regular vendors offer repops listed to fit 1947-53. Jim Carter has
UPV131, while Classic Parts offers
25-011 for a lesser price.
I thought I had one (something I picked up at an antique store cheap), but in checking the part number, it turns out it's listed for a 1954 model year. Different number than the 1947-53 original part number. No idea if there is a difference in the mounting to the earlier part as I haven't tried to compare it to the one installed in my truck. Perhaps someone knows if there really is a difference, or if it might work in the earlier trucks?
If it would work in your truck, we can talk further.
