sweet i need to see all the NNBS trucks drag racing. by the way Three6GMC you has the sweetest truck iv ever seen. I usually don't like big rims but on yours they fit. I think you need to do a modeling session with the chick in your sig.

 

Agreed with those above; don't launch in Auto. 4HI for the win (and longevity of your Autotrac transfer case)

 

Use 4hi not auto. I love my AWD.

 

ANd if your still doubting it..
watch the videos of this crazy fool..

https://www.performancetrucks.net/fo...7/#post4921997

 

He launches in 4hi and leaves it til the end

 

Both of them do.. if your tires are the same height, your good to go.