I bought my first Jeep about 3 months ago, a 2000 TJ 4.0 automatic. I’ve had no issues with it until a recent off-road trip when the transmission decided to stop shifting out of 2nd gear. I know very little about working on transmissions so I hope someone here can help. I’m not completely certain at what point the trans stopped shifting correctly but I do know it was after hitting a fairly deep mud hole which o got hung up in so I decided I would try to “rock” it out by shifting from drive to reverse and back several times. The Jeep did fine after that, from what I could tell, but we also were