SM465 Bell Housing

[Nin92]

The hydraulic slave cylinder ear broke off of my aluminum bell housing and is irreparable as the aluminum is too corroded. I cannot locate a new bell housing for the life of me. I'm being told that they are not common to come by and I'd really like to find one so I can move forward on my project. CL came up empty and all of the auto yards, transmission shops nor drive train shops know where to locate one. Any advice? what are my options? Thanks in advance