GMC Truck Forum banner

larger tires

  1. Engine & Performance
    I currently have a '08 1500 2WD with 2.23 gear ratio, I believe (I can't find any paperwork for my truck). The stock diameter that I got with the truck was 29.5" and I've upgraded to a 33.5" tire. It's obvious that braking, power, and MPGs have all suffered. I know how to fix the braking issue...