You guys must have something wrong. I'm on 37's with 4.10's and mine is fine. I go into 8th on the highway. Honestly it feels like my JK did with 4.88's.Same here in flat Texas. Drove me crazy. Was gonna regear, but decided to step back down in tire size instead. Stays in 8th better now. 285/75 Ridge Grapplers. Still good for the trails this Jeep will see.