Anyone know the Rim/Tire combo on Roadkills Crop Duster?

No argument there, the extra 1/2" makes things a lot easier even just for fitting 275's, lots more room for error when it comes to backspace, or changing out brakes later. Good point about the drag radials too, not even all street tires are the same width for a given size, it can vary quite a bit from manufacturer to manufacturer.

But not everyone wants to weld new perches on their rear axle, or pay someone to do it. Life's a lot easier when you can weld. :D