nope...alternator with 4 wires (one of which is a ground) wired to a regulator ....take a look at the pic red58 sent in the posting above, this is identical to the alternator and the regulator that I have.

thanks for the pictures Bill. If you follow the wires let me know.

Carl

'58 3600 350/4-sp/stepside/big window cab
'59 3100 235/4-sp/stepside