Thank you so much for this fix. I was gonna bring my truck to gmc over an hour away to have it re programed. Was also thinking transfer case was shot. Again thank you so much. Tried all kinds of quick fixes on the net for two days now and this worked. !!! This should be a sticky. Pin. Something. To note i was getting the "service 4wd" code and also my switch was showing auto but was actually stuck in 4hi.
Trying to figure out if I can fit a 33 inch tire with a 1.5 lift. Or just go to a 2. ? I wanna put as little stress on everything possible. I have the regular 4x4. No z71. Steel control arms. Deff wanna take someone's experience who has had two newer bodied gmc/chevy trucks and tried all lifts possible. My buddy is gonna help me install then straight for a wheel alignment.
And I like that blue a lot by the way and the wheels.