I can't see that being possible. I have 8" Corvette Rallys with 4" backspace on my '87. Now my rear tires are 275/60 15's, so there's more rubber outside of the wheel, aka "sidewall bulge", than a larger wheel with a 35-40 series tire, but if you stick your fingers in between the tire and frame or tire and wheel opening, I guarantee you'll have dirty hands.
Bill