DeRock2022

As for the auto 4wd my wife ran her 2010 suburban in auto 4 from November to April every year no issues with the transfer case. She has a 2016 yukon denali xl and no issues. My 2012 sierra 1500 with the 6" lift 35"x12.5 tires I run it in auto all the time for daily driving lease roads on the oil patch or on site up here in northern ab she is all ice and snow. If there is a good dump of the white stuff I throw it in 4 hi and if I'm chewing down a remote road she goes in 4 lo. I have 240,000km on it no issues with the transfer case......knock on wood.

Hey Fellas, I called ready lift directly and they said that not to use the auto 4 was the recommendation for the at4 1500. That I can continue to use it with my 2022 denali hd. The kits itself has diff drop spacers new a arms and new ball joints and tie rods to keep it close to factory angles. Also this kit kit comes with bilstein shocks all around. So 3.5" front 2" rear. I love my bds 6" lift on my work truck sierra 1500 but this lift honestly appealed to me more compared to the 3" bds(ball joints,tie rods. I'm not a fan of fox shocks that come with it. 3000 cdn imstalled took forever to come in but its here gets installed on the 3rd or march here.

I read that with the ready lift 3.5" they recommend not to use auto 4wd because it will cause vibration as it has trouble knowing how much torque to send.

Come Gents help a brother out