Amp Meter ByPass
There is no possible way I'd consider "keeping" the amp gauge with a 140A. Even "Ma" knew this was a problem with SIXTY amp alternators, as "she" offered optional "fleet / taxi" wiring which ran the ammeter wires in through separate grommets, IE bypassing part of the bulkhead connector.
Depending on what dash you have, there was a thread on here on modifying the ammeter for mounting a voltmeter, but my understanding is that the original Sunpro gauge is no longer available. However "the project" would be similar for any voltmeter
http://www.forabodiesonly.com/mopar/showthread.php?t=119480
You can CERTAINLY wire a direct wire from the battery to the alternator. Frankly, I don't care for "one wire"
Problems.........
You need a VERY large charge wire. Why? Because the charge wire is now the SENSING wire and any voltage drop on the charge wire would cause system voltage to vary
I'd say with a 140A, that no6 might even be small
Here
NOTE This website no longer allows proper posting of URL to a file
put in
http://www.
and then put this in
tuffstuffperformance.com/pdf/1-wire_alternator_instructions.pdf
You are headed for a no4 charging wire
Racing / rear battery / disconnects. A "one wire" can complicate battery disconnects, required for racing with trunk mount battery.
Yeh. they're easy. Hook 'em up.