i've got 255-45 BFG's on frpp 9" rims.../ i love the look since the rim looks flush with the tire... but i can see that it would be pretty easy to curb rash your wheels... they are actually the recommended size on lots of sites for a 9"wheel. 245's MIGHT be a little small, and imho 275's would look big up front. i have always liked the idea of having the same size tires in the front and back for rotational reasons when running street tires. and i think 275's are too wide on our cars up front since it sticks out past the fender a tad. to sum all this mess up, go at least 255's, and if you want 275's you might want to have diff front and rear tire sizes