Wiring new aerostar alternator. Help please

I have bought a new 1993 aerostar alternator for my kit car and I am looking for help to wire it . All I can see on the back is one single nut with a bit of red paint. Is this the only connection needed? A picture would be great.
Thanks.

As you are making a change do a google search for Ford Alternator wiring diagram. Also do one for ford alternator wiring harness and do one for ford alternator wiring. They sell a cheap $15.00 wiring harness for this purpose.
Anyway the pictures are valuable. People do mods all the time and the information is available.
Normally ford has a plug for three wires.