Useless question without more info. You can't even fit 205 tires with a 7.5 wheel with 3mm offset.
You NEED to spend the time through all the pages if you are so concerned about making something fit.
Someone could say, "yeah I did 245s on 7.5 without spacers". But that would not confirm that it will work for you.
To fit 245s with 7.5 wheels without spacers, you will need an approx offset of 30-35mm offset.
But please take the time to read a little and understand why.
(Sorry if I started off snarky, been a 14 hour work day, and I'm cranky.)