I've gotten a wide variety of answers and I'm hoping to get some help in figuring out what is correct. I have a 2009 Tahoe LT RWD and I've got a Rough Country 3.5" lift and 33" tires on stock 20's. My fuel mileage went from 23/18 stock to 14/11 with my current setup. I'm about to go to a 8" lift...
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