I'm back at it. I gave up on the making of the 5/8" tool holder. See
HERE as to why.
Anyway, I decided to use a 1/2" carbide four lipped end mill for no other reason that that's what I had. i started on the first set of journal boxes. Milled off just enough to take the taper out of the casting on both sides.

And here they are milled on both sides.

Next will be the journal boxes for the gear side.
Bernd