The 3 blades broke off in one section, and one blade broke off.
I glued the section (in the middle of the fan) back together with epoxy , and it held great.
The one broken blade I also epoxied back and it held well.
I tried it with my battery and it spun perfectly, but at the final spin I could see
a very extreme minor wobble.
That should not bother its performance. BUT in the long run that single blade could break off .
So now I would have to get under the dashboard and pull out the motor.
So since it is out of the car, (I am restoring the complete dashboard) I would rather put in a not broken fan.
Tom M