First off I don't know any tire dealers in your area but would suggest either Camping World or a store that sells utility trailers or boat trailers.
The tires on your dolly have to be trailer tires because car tires have a weak sidewall whereas a trailer tire has a stiff wall which does not flex.
I has regular car tires on my dolly and they gave me trouble until a trailer dealer told me that I have to have trailer tires.
They also run about 35-40 lbs of air.
2014 Winnebago Adventurer 35P,Ford F-53, V-10
2011 Ford Escape,2000 Roadmaster Tow Dolly
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