Looking to possible regear my 2017 GMC 1500 4x4 running 35" tires. Currently it has 3.42 gears getting between 14 and 17.5 mpg. If I read the charts correctly, I should be running 4.10 gears to get back close to OEM settings, since 3.90 is not available for 4x4. Anyone else running 4.10s on a lifted truck?