Wheel question from a newbie

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Hi, in an old post from "smokin" about sportrak wheel size; mentions they run 31.10.50 -15' s on standard rims. Does this mean that this size tyre would fit on the same original rim that runs my 225.70.15 Unknw Or would I have to change rim size and to what is ideal for 31.10.50 - 15's? Possibly 7J15" 5 stud?

what rim size are yours?? 31"

what rim size are yours?? 31" tyres are 255/75-15 so there 30 mm wider, good chance they will fit and be fine.

Full of ideas but no time to do them!!

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