My original (~20-year old) Vans tail wheel is getting worn and went to replace it. I had upgraded my RV-7 tail fork to the Aviation Tech (similar to Bell model) and the old tire fit just fine. The new tire bushing support is wider and metal rubs on the fork. Van Tech support suggested adding washers but that would put pressure on the fork base. Has anyone else had (and overcome) this problem before I order various tires to see what fits?