1995 2.5L Transmission/Axial oil questions
So im planning on doing a full oil swap tomorrow on all my axial, transmission, transfer case, and changing to synthetic for my engine. I know my engine needs 10W-30, the transfer case needs ATF +4, I have a question though regarding my axial's and transmissoin
My Chilton's guide says that I should used GL-5 for my transmission but on some write ups here on the site it says I should use GL-4 or GL-3. Issue is that orileys and Napa out here in sacramento dont really offer a GL-4 or GL-3 specific oils, but do offer GL-5 oils that conform to GL-4/GL-3 standereds. Should I go with these Oil's or order some GL-4 oils from online? I have also heard that full synthetic GL-5 oils can be used, is this true?
Another question, do my axils require a GL-5,4,3 spacific oil as well, just like my transmission? Or would placing SAE 80W-90 GL-5 not cause any harm?