Many thanks for the photos! Great research and attention to detail. I knew about the KF but not the other details. Those marks have to be some kind of in-process checks made during either the transmission assembly or installation.
Very welcome Don . Its a chance for me to give back to everyone here on the site that has helped me out .This is a VERY good group of people on this forum and I couldn't have put this car together correctly with out them .
Plus I still need some important info pertaining to the 3 speed cars. So we will more than likely talk soon .
I should mention also that my car was built in the Kansas plant , don't know if some of those markings could change from plant to plant .
One other thing I forgot to mention is I did not paint the transmission case or tail housing , they are bare cast iron coated with a wax paste .