Hey guys sorry its been so long but I was busy trying to graduate college and get my air force commission. The other day after leaving a local air race the truck had problems accelerating. I thought I lost overdrive but saw in the message box "service 4wd". I looked over an saw that the truck had somehow put itself in 4wd low. I did not have the truck in neutral nor did I hit or numb 4wd low. After I pulled over and put the truck into 4wd high, then 2wd I heard a low metallic bang. Now when I'm driving the t truck, as I accelerate I hear a pop when shifting and sometimes a rattle as well. I'm now wondering if the damage has been done to the transfer case or the transmission itself?