My '99 TJ has the 4.0 engine and the ax-15 , 5 speed manual transmission. I have been having some issues with the transmission, related mostly to putting it into 4th gear.
4th gear works fine, but, between the speeds of 35 and 45 mph, it is a bit difficult to put it into 4th. Once in 4th, I have to let the clutch out slowly, or it will pop out of gear. Sometimes it even feels like it went "too far" into gear, and it moves the shift lever forwards a little bit. Once in gear, it works great, and it never pops out. Other than that, sometimes reverse and first gear are little stiff to engage, but most of the time, all else works great.
I have asked around at a few local transmission shops and am getting two different opinions. A few shops told me not to mess with it, just have a rebuilt transmission installed. A few other shops feel that it is probably no more than a fork, shift lever, or syncro, and that a repair would be as efficient and a lot less money.
My main concern is, I would rather not put a band-aid on it, but I do not know much about transmissions. It is my hope that some of the mechanically inclined forums members will share some ideas about the pros and cons of these options.
Thank you in advance, you are a pretty awesome bunch.