I had taken my dash air out when I was unable to replace the "squirrel cage" fan blades. However, I have now found a perfect replacement in the paint department of my local Tru Valu. Sold as a paint stirrer was my squirrel cage fan blade mounted to the end of a metal rod. I bought one and took it off of the metal rod and then put it on the motor for the AC, perfect fit and can not tell the difference from the original, other than it is not broken. I will drill a hole for a set screw so this one does not get warped like the last one. Now I have a winter project, replacing my AC.
1994 30' Excella 1000, Chummy III- Ford Excursion- 7.3 Turbo-diesel