Folks, I read so much about wheel spacers being required but can not locate a reference that would tell me if I should have them or not. My hubs are 1940 with new drums. Rather than one piece hub/drum I now have two since the hub and drum are no longer joined. When mounting the drum I have a small about of wiggle room between the studs and the drum holes. This might be normal but I am trying to provide a much info as possible. The wheels are 34 wheels. I currently am not using spacers but don't know enough to know if I need them or not. Any info would be greatly appreciated.