Tech information furnished by Scott Wood
I just replaced the old points type voltage regulator on my 1968 FJ-40
a solid state unit. I had been wanting to do this for a very long
but never found the correct part number for a solid state unit. After
lot of research, I found the part and installed it last night. It
Buy either a NAPA VR1001 or a Standard VR128 voltage regulator. This
solid state replacement for late 1960's Chryslers, it replaces the
type regulator in those cars. The pigtail on the regulator connects to
ignition, and the stud on the regulator for the field. The "E" from
alternator just goes to a ground, I used the bolt that attaches the
regulator to the firewall.
I used a VR128 and if the holes had been about 1/16th of a inch farther
apart it would have bolted up to the firewall holes for the old
as it was, I just used my Dremel tool and make the holes just a little
This is a very easy upgrade, it took me about 15 minutes. No more
overcharging or very erratic output from my alternator.