[Tinker]

Welcome to the forum.

Do some searching within this forum. This has been covered many times. Its hard to say what exactly works because some spindle or brake packages change wheel offset. Aftermarket frame you have a whole new ballgame.
The old standard was 245's on 8 inch rim 4.75 backspace. Wheels have gotten wider. With each size increase, the difficulty increases much more. Pay close attention to the backspace with drop spindles, because the steering arm may interfere with the rim. Push the rim out, and tire rub occurs. Many members have spent a great deal of money and time trying to stuff bigger wheels up front.

Good luck!