I can't prove it but I think I saw a faded trace of the N on top of the diff near the yoke. I tried to take pictures but none of them came out.
I also removed all the brake lines from the prop valve back and replaced the main vain line which I determined is 1/4 inch not 3/16. I also replaced the left front short 3/16 line.
I am trying to find out from Ames what brand axle bearing they use