Thanks very much, everyone.

I decided against an Aircraft Spruce overhauled unit because numerous reviews of several different types they sell claimed that they failed after a short time. And they do have a new Hartzell ES-4001 (which is what I'm replacing) in stock for only $250 more than the overhauled DOFF10300FR. I called the company that repaired my alternator six years ago about an overhaul, and it would take 2-3 weeks and probably cost around half what a new unit would. But they had a new ES-4001 in stock they could ship immediately, at about the same price as Spruce's. Much as I love doing business with Aircraft Spruce, I chose to go with the smaller company who also provided super service in the past. That company is Aircraft Accessories of Oklahoma.

Thanks again!

Roy

States where I've landed my 150
[Linked Image from eznec.com]