Thanks for all the good replies. Please keep them coming!
I had searched this site previously, but hadn’t yet found the links folks have included here. I look forward to reading all of that, as time allows. I just don’t want anyone thinking I’m not willing to do the work to investigate.
The GTB transfer case also looks very similar. I hadn’t see that one yet.
I also hadn’t seen the one with the extra oil capacity. Very cool!
Much of this makes me wonder if Ford and possibly others licensed the design from Timken, but manufactured it themselves. For example, I know IH manufactured multiple axles that were designs licensed by Eaton. They did this for decades.
Interestingly, Timken actually licensed the design from Alma Motor Company and there was a court case in the mid-40’s.
https://www.courtlistener.com/opinio...troit-axle-co/