Yeah, as lawsoncl says they are pretty bulletproof. Unless you break the case or your flexplate disintegrates they are hard to break. Most stuff is pretty easy to diagnose too.
Post up your symptoms.
its in my woods beater hit a rock smashed the case i have another one in a cherokee but saving it incase i need it for my good jeep. can get the yj one for nothing but i was hoping they were the same