I have been searching all over every where and maybe someone has some insight. Is there a difference between a 2wd and 4wd dash harness? I have an 04.5 gmc that needs a cab swap and I've found a clean 2wd cab just not sure if I can swap it on and just plug and play type thing my push button 4wd, Any Insight? I have read the threads on 2wd to 4wd drive conversions but no one talked about the actual wiring part. Any help would be much appreciated.