So I was pulling some bushes out of my yard last night and some of them actually stopped the truck from moving. As in I had to actually rock the truck in reverse to get them out. I have the 5.3 with AWD and it was almost ridiculus. It would hit about 1900 RPMs and just stop. The tires would spin a little and then the awd and locker kicked in and the truck would just not move. I just sat there sounding like a really big fan. And yes i took off the T/C. So any way just a thought to see if I was the only one or if others had the same thing happen.