I was lucky enough to have low not put out anything (didnt have enough *ss to overcome the bearing friction), med1 chriped like I had a bird trapped in there, med2 was OK, and Hi shook like hell. I could tell someone else had already drilled the motor end and lubed it, then put a piece of tape over it.
I got a carquest blower motor (with the fan already attached.. yee ha.). R+R of the blower motor is a pain in the *ss. Remove the strut tower brace, then the lift brace that holds the fuel lines, 02 harness wires, and rear plug wires (using braille to find the 5/16 nuts that retain it). then the 5 or so 7mm screws for the blower. The lift brace has to move for the fan/motor assembly to come out. Then the little rubber hose was exposed to too much heat over too long and crumbled. The rubber mounting gasket for the motor had to be put over on the new one. With the new one on, all speeds are perfect. And Lo actually puts out something.
All in all, a job that on any normal rwd car (like my 78-88 g-body cars) takes 5 minutes - but on this one was nearly 45 minutes..