I have a 97 XJ 4.0. It has the very typical leak at the base of the oil filter mount. I read through previous posts and decided I could handle the repair at my next oil change. I purchased a socket with the correct torx and removed it from the socket. I than used a wrench on the torx bit with about a 3 ft. piece of cast iron pipe over the wrench. The damn bolt would not move at all. Anyone have another idea on removing the mounting bolt ?