Did you check this thread for help?If you are running 37’s on your Gladiator, how is the drive? And did it affect your towing? Lastly what did you buy? I am looking at KM3’s
Any update on MPG or performance not that you have driven more? I am thinking about making the same change.I just changed from 35's to 37s and there is a big difference in the feel of the truck. They look great and it turns heads more than before but you definitely pay in the performance area. Being heavier the ride actually feels smoother and they soak up bumps better than the lighter 35s or stock wheels. Havent driven it enough to gauge an MPG difference yet though.