jkade72

iTrader: (23)

I am putting a ls1 with a 98 f body harness in my 67 c10 and was wondering how to hook up the factory volt guage in the truck. The harness only has the one red wire that goes to the alternator.
Thanks and I did do a search

67rsss

iTrader: (4)

Does your 67 have a voltage gauge or an ammeter? If it has an ammeter, it will stay hooked up to the original harness, as GM just measures the current through the feed wire to the battery. If you have a voltmeter, just leave it attached where it was, usually at the horn relay or on the harness splice.

jkade72

iTrader: (23)

The truck had idiot lights and I converted over to guages with the ammeter ( I guess that is what it is). When I did this I had to run a wire to the alt and to the bat for the guage to work.

67rsss

iTrader: (4)

The wire you ran to the alternator before can be run to the horn relay now. You just want to tell when energy is going to or coming from the battery. That will work good.

G-Body

iTrader: (4)

I would think twice about using an ampmeter. I don`t think that your ampmeter is rated to handle a LS1 alternator. The LSx alternators are capable of putting out over 100 amps, and I am guessing that your ampmeter max`s out at 60 amps? Granted the chances of the LSx alternator having to put out over 60 amps to charge your battery are very slim, but it could happen.

If you do decide to stay with the ampmeter then it will hook up the same as it did with the old motor.

jkade72

iTrader: (23)

Thanks guys I appreciate the info.