Bartomas, OK, got what you meant.
Redlegs48, I have stripped the'48 2 ton down to frame rails and a lot of pieces. I encountered 3 different size clutch heads. I don't remember what the sizes were called, just bought the 3 size bits that the camper store had . I did have a screwdriver that I had for years that was bigger than any of the 3 but haven't found a use for it.(tiny, average and larger?)