My blower motor is start to make a low squeal at the low speed, when I turn to number 2 or higher it goes away, is this the first symptom of the motor wearing out?

I looked at Art Bernsteins site for removal replacement, it doesn't look to bad, just tedious and time consuming. And the motor price seems reasonable from the online dealers. Looks like a good days work

Im planning on just letting keep going for now, and not rush into a replacement, unless someone gives me a reason to change now.

thanks