Ha! Where are the best bunch of busnuts anywhere?? RIGHT HERE - That's where!!
I think oiling the shaft. and using a stick (yeah, I'm a chicken & don't know what I'm doing) to move the squirrel cage while turning on the blower made the final difference. Turned on the motor, gave a push on the cage w/ a stick, cage stuck for a bit, then spun freely. So, I miscalculated yesterday how freely they spun when I was spinning 'em from the roof. They are running right now for a good 10 minutes. I'll go up in daylight on the roof & oil both sides of the shaft & make sure all good.
Same story on rear a/c.
Middle A/C still worked fine today after running for 10 or so minutes yesterday.
What a fanstastic group - I really appreciate every suggestion. I have read them ALL carefully and have learned a tremendous amount about not just my a/c units, maintaining & running them through the winter, but also circuit & electrical system troubleshooting. I was totally resigned to the fact that I would be buying 2 roof a/c units + labor. So some kind of $1,500 bill was looking at me in the face. But NO!
Kind Regards, Phil