I took the wheel off this weekend and the freewheel took considerable effort to rotate. If I spun it hard it would only spin about 3/4 of a revolution.

I sprayed some WD-40 into it and it broke free almost immediately. I kept douching it for a while, blew it out with compressed air and oiled it with CLP. It really spins now! I'll keep an eye on it, but it feels good with no undue noises.

Thank you all for your help,
Eric