I have a Gladiator with 37" KM3s, after 16k miles I could tell something was a little off with the truck at high speed and I didn't trust moving the larger tires at slow speed in tight spots. This brace has made the truck feel completely different " like a new unmodified truck" This should be the first upgrade you make when installing larger tires and lift, or even if you keep the JT or JL in stock form. You will thank yourself immediately.