Wheel and tire question for 68 GTS

you have large bolt pattern or small bolt pattern? if small bolt then you can't get away with as much backspace so measure carefully..

here is our dart.. it has large bolt pattern front and rear so its slightly wider then small bolt. these are wheel vintiques 15x7 wheels with a 4.5" backspace.. if i did it again i'd go 4.75 backspace but not sure if a small bolt car and go that much. my big bolt car can do it easily..

tires are 225/60-15 all the way around.. not a big fan od BFG T/A tires.. better choices out there..

oh and those are factory chrysler red line dog dishes that were also on the stock small bolt wheels that i'm now using on the WV large bolt wheels..

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so many tire size recommendations it get's to be too much. in the end, all said and done what tires front and rear with no modifications to car can I go with? I have brand new stock 14x7 cragar s/s wheels. I want it to look aggressive with the tire setup but don't want cut up my 68 dart gt. you also mentioned a registry, how would I go about finding that? thanks for all the suggestions, look forward to hearing from you guys, thanks brian