We were driving down highway and started to feel the back end of the truck start to shake. Then it started to feel like we had a flat tire. We were less than a 1/4 mile away from the gas station when the tire JUST SHOT OFF THE TRUCK!(went flying deep into the woods). We then slid across the road about the length of a football field. Luckily we did not flip and there were no other cars around us at the time. could this be caused by the rear differential or is there a bigger issue we over looked? Please help someone!!