Re: GL-3 OR GL-5
I've asked this question before myself, and I get about 50% saying that GL-5 is bad, and the other 50% saying it works great. The concern is that a certain additive in the GL-5 oil will damage the brass syncronizer rings. My "official" Chilton's manual, as well as other manual transmission books I've seen, all suggest GL-5 for the AX-15. You could play it safe and just get Redline MTF GL-3. This particular oil has been suggested to me several times before.
93 YJ/4.0L/33x12.50s/D30 front/D35 rear/NP231/AX-15/3" Rough Country suspension/1.25" shackles