I am not sure what route to take. My truck (as far as I know) is pretty much as close to original as they come. A while ago I decided to keep the 6V electrical for reason of keeping the truck original. So, wouldn't converting to an paper filter be contrary to that logic. As I mentioned earlier, this is a spare air filter. I think I might go ahead and convert it and keep the original one so that I can go back if ever needed. Dave and Norm, I may need to consult you guys.
A while ago, there a was a thread asking about what was the best fitting paper filter for our trucks --> here it is
I don't think mine is a heavyduty. Does anyone have a part number for one that would work in a '49 1/2 ton? Photos of my engine and spare below