68 Barracuda Alternator upgrade.

The ammeter conversion thread.......... Read all of it, as it covers several cluster styles.

PLEASE don't try and use the original ammeter


Ammeter to Voltmeter...who does it?

If you research some of the 72-ish / newer C barges they went to external shunt meters, which essentially used the harness itself for a shunt. You can download factory service manuals free, from MyMopar

Even "Ma" knew the ammeter wiring was inadequate as back then there was "fleet/ taxi/ police" wiring that was used for optional 65A alternators. The factory bulkhead wires were clipped, and new ones run directly through dedicated grommets in the firewall. This too can be documented in the 69--72ish factory manuals in the wiring section.
Thank you,
I did buy the service manual for this vehicle. I am new at this, exceptionally mechanically inclined, but again new to this much detail. I was hoping that there was a known shunt that would suffice but the more I dig in, the more I know I know nothing! The education I receive for all is greatly appreciated!
It sounds like that there's no quick fix to this question. That's OK, I will learn as I go along.
I was hoping that there was a way to address this common issue by purchasing a manufactured shunt to resolve the problem.
Thanks for your help.