Ok so i was putting in my new muffler and a couple buddies were helping me. I had to remove the skid plate covering the transfer case (which is lowered) in order to get to it. I removed my old muffler without a problem and my friend wanted to turn the jeep on to hear it without a muffler. I said sure and he did it but he put it in gear and hit the gas and the transfer case slid down bringing the engine with it. They fell about 4-6 inches from normal. Right away i jacked it back up to normal put the skid plate back on and started my jeep. When i turned it on it said it was in 4wd i pushed it down to where it is no longer in 4wd but the 4wd shifter is very loose and awkward. It does seem to shift gears fine. Is anyone mechanically savy enough to tell me what happened. I planned on taking it to the shop first thing in the morning but i need to tell them something and im jnust really curious. Also i need to put a muffler on so i will have to take the skid plate back off again. any suggestions for this?