They are there if you choose to use them. Those pins, "in most cases" are about a little oversize. Read the tech tip on rebuilding these,John, and I think you use a 11/32 or a 13/32 bit to drill the holes out for the pins...not sure and as you know its always nice to check the ACTUAL size of the pins before you drill.
You can use the bushings but you'll have to drill the "tongue" piece out for them. I know this has been talked about and discussed but I can't find it.......yet. Remember, measure twice, drill once
EDIT: I think this is what your looking for.
http://www.stovebolt.com/techtips/doors/hinges%202013/
