Good luck with your AX15 rebuild. I got a rebuild kit from transparts
via ebay. It included bearings, seals, and synchros. I would suggest
replacing the 5th gear snap ring, do not put the old one back in as they
are a known weakness--get the set of 8 or 10 from the dealer as they
come in varying thicknesses. If you need part numbers when you get to
this I can get them for you. I had access to a full shop with bearing
splitters and several bearing presses which came in handy when I did my
rebuild (military auto hobby shop). I found it took a few days for the
synchros to bed in after the rebuild, I ran standard gear lube GL 4 not
5 as per Pat, for about a thousand miles then switched to Redline MT 90
like Rustywrangler has been known to recommend.
I also rebuilt the NP231 at the same time, it was a simple and
Take photos, use many ziplock bags and labels for all your parts. You
can even get special markers to be able to write on the parts for
orientation if needed.
Good to know info for Pirates: http://www.talklikeapirate.com/