Wheel on Ural will not clear brake pads.

Hi folks. Thanks for the previous suggestions on CB - Ural hookup. I tried to mount the tire that came with the ural and the wheel will not clear the brake pads. It is not even close and adjusting them was no help. I think the wheel may be from a different sidecar - like a Dneper or something because the guy I got it from was selling numerous used cars. Anyway, I took the brakes out to mount the wheel and it seems to me there are washers or something missing as the whole arrangement looks mighty 1/2assed. Can anyone recommend where online there is a schematic of what the inside of a ural wheel/axle assembly is supposed to look like? Thanks