Jandref321's DIYs are helpful for me, he usually has the part numbers, tools needed and parts he used along with tips and tricks he learned along the way. Here are a couple of his:
Tranny Service:
https://www.xbimmers.com/forums/show....php?t=1502982
Rear Diff:
https://www.xbimmers.com/forums/show....php?t=1533599