I have a 1998 Jeep TJ with a 2.5 4 cylinder 5 speed manual I think ax-15. It has about 150,000 miles on it. I do not have very much history with her because I have only owned her about 3 weeks. The point is she has been running great in all gears. Until one afternoon when I got ready to leave she would not go in reverse. It would not go reverse in all other gear fine.It is like something is blocking it. I took it to some pro transmission guy they suggest rebuilding or buying one rebuilt and let them install. Please give me your pros and cons