I haven't done anything crazy with it since I've had it, but I don't know about the previous owners. I'm going to check the fluid in the t case this weekend.
When I put the transfer case into 4hi or 4lo and give it gas there is a clanking or grinding sound that happens and I have to take it out of 4WD. Any ideas on what it might be? I think it is the chain in the transfer case. (92 Jeep XJ Stock)