Blower motor blues

This thing sounds like someone was dying when you turned it on, so the heater box is out of the 65 Baracuda. After three decades of sitting it all needed done anyway.

Any tips on getting this off? Set screw is out, nothing budging. Is it easier just to buy a new squirrel cage? I had planned on getting this one off and reusing it.

I found a couple online that have the same dimensions. O'Reilly says this doesn't fit a 65 Barracuda but it looks like the same wheel.

https://www.oreillyauto.com/detail/...6635/automotive-car-1965-plymouth-barracuda?5