I need a part number for a replacement squirrel cage for an AD Airflow heater. I decided to replace the motor with 12 volt unit. Maybe I should have left it alone. The set screw rounded out after heating and soaking and... I can barely reach it with a drill bit, but it is bigger than... suffice it to say that I need a new cage. I found no results in a search. Thank you in advance for the help!

-Tim
'51 Chevy 3104 w/'56 235, 848 Head, HEI Dizzy, Corvette Cam, Split Manifold and Dual Carter YF's