I reread the tire thread and didn't see my answer so I'm hoping someone can help me.

I've got the '35 1 1/2 ton that was my grandfathers. My uncle bought it from him in '64 and took the duals off, using it to feed cattle. When I got it from my late uncle he gave me the rear duals he had stashed away. I recently bought six new tires and am putting the duals back on. Yesterday I mounted one of the duals with the 650-20 tires on the truck. The tires are too close together. Was there a spacer? I checked the rims to make sure they didn't have different offsets and all of the rears are the same. When I got the truck and it had the rear singles on it there was (what looked like) a homemade "spacer" under the flange that goes on the outside next of the nuts. I assumed it was something that my uncle made for some reason when he went to singles. It would be like him to make a filler plate to take up thread space instead of changing something. I put the duals on normal and they were a half inch to three quarters of an inch apart. I put that "homemade" spacer between them and it bumped them out another half inch. Both rims are running on the hub not the studs, but that still can't be right. Duals should be sucked in tight so they don't loosen.

Was there a spacer between the duals originally? How far apart where the duals back then? Are there any pictures out there I haven't found?