largest wheel tire combo on stock suspension

[jsbihn]

I am curious to know what is the tallest and widest width wheel tire combination that can fit on a stock ride height??

I am wanting to put a wheel and tire on my truck that will stick out some from the fender while also giving it a tire to fill in the wheel well... Give it a wider and taller stance... but I dont want to rub or loose turning ability by getting it too wide or too big