I'll never use another pos GM alternator after switching to the 3G Ford. It does take 2 wires, one to charge and one hot with key on. I get them for 10 bucks at the wrecking yard. And they will charge 90% of rated output at idle. Regulator and brushes come out the back without disassembly.
Not expensive.
http://www.ebay.com/itm/FORD-3G-IR-I...ZUl5mf&vxp=mtr