Well, the ring and pinion are now working jsut fine, but now it seems the DS is acting up as well. There was some vibrations with the rear DS (none when we ran the Jeep in 4H and no rear DS, so it's defenetly that), so I had to get me a new one (no real good DS shops in Panama, unfortunately!). The good news is tha the Jeep will be running as smooth as a baby's behind when i am all done with this fixes! In the mean time, the wallet is getting a bit thin, though!