First, let me start off by saying, VERY ******* NICE!!!
4x4ing in the snow is funnnnnnnnn!!!!! lol
Anyways, yes....anytime you change any part of these trucks, errors will come up...specially the suspension...there are sensors and when the computer recognizes that you are not at the correct height and something major has changed, it will throw errors at you...the Air Ride shocks have to be adjusted from what I've heard....in a pain in the ass...you have to trick the pins or some shit...I dont know too much about that, but someone will chime in.
Also, after all that work being done...take a run out there real quick and make sure your rear ABS sensor wire going to your brakes isnt rubbing on your rim...when it melts through the insulator and through the wire, that also ****** sucks!!
(************* shop!!!)
BTW...I want more pics of your truck!!!!!!!!!!!!!!!!! lol