Heater/ A.C. Blower Motor Question

[kwhizz]

Stupid question.......but it's something I've never had a problem with before.....On the way back from Lombard yesterday with the A.C. on.......the blower motor started Squeeling like crazy on high, went away on med and low....but there wasn't any airflow except on high...when I got home I pulled out the Blower Assy and the motor shaft and hub spun seperately from the squirrel cage assy.....I'm thinking that some spot welds holding the blower to the hub failed.....I didn't take the assy apart because there is sort of a friction clip holding the unit to the shaft(Been down that road) and I thought I would ask here before I only make it worse..

Thanks
Ken