OK, so I've got an 08, 159,300 miles.. started out when I'd put it in reverse, it would run really rough and die within a second or 2.. at the same time it says to service four wheel drive.. it was running fine in drive, then it got to where it would die going down the road.. seen a pattern of mainly when you let off the throttle and it was idling down/ downshifting.. it will idle fine in park or neutral, I changed the transfer case motor, and that did not fix it. Any suggestions at all would be GREATLY appreciated.. thanks in advance!