Dan Treace photo
you open up a rear axle and find babbitt thrust washers or their
remains, the MTFCA axle book by Glen Chaffin tells you almost all
you need to know. It provides guidance on what to do and how to do it
and is readily available from the MTFCA at http://modeltstore.myshopify.com/products/service-manuals
and from all the Model T parts vendors. The MTFCA also has how-to
videos, but the grease smudges on my book show that I found it a
handier reference to use while I was working on the project. It's
faster than going through a video to find the part about what you're
doing at the moment.
My one quibble with the book is that it's impartial about whether to use the original pinion bearing setup or a modern replacement. Most "improvements" for the Model T aren't. But after attempting to go original on my first rear axle rebuild, I'll always use the Fun Projects replacement from now on. I wasted my money and time trying to install a new pinion bearing inner sleeve, and found the job too much for me. I ended up with the thing partly on and stuck, and finally cut it off with a grinder and ordered the Fun Projects kit at http://www.funprojects.com/. Experienced T guys whose opinions I respect recommend it.
In addition to the MTFCA books on various areas of Model T repair, one of the first Model T parts every new owner should buy is the Ford shop manual available in reproduction from all the parts vendors. This and the MTFCA books will tell you almost all you need to know. The Model T is relatively simple, but it's different from other cars. If you just dive in without some guidance you may be surprised at what you find, and consulting the books first can save you a lot of grief, hassle, and expense.