Largest Tires for Stock 2500HD 4X4

[larry horne]

I have a 2006 stock Chevy 2500HD 4X4 extended cab with factory steel rims and Michelin 245/75/16 XLT truck tires. Great for hauling grain trailers but SUCK in sand and boat ramps.

So I bought a set of OEM 10 hole alloy rims, 16 X 6.5 like the ALY05079U at this link:

http://www.wheelsandcaps.com/catalog...RADO&Year=2005

My question is what is the largest tire I can put on these rims and not have issues with rubbing the frame while turning. I dont want to lift the truck, just get these skinny HD truck tires off.

Thanks for the advise.

Lar