1970 Dart - Single-Wire Alternator Conversion

The big big big issue with this conversion is

1....Large enough wire from alternator to battery for two or three reasons. Once of course is to carry the current, but a "one wire" has the voltage sense AT THE ALTERNATOR. This means that there can be no/ very little voltage drop on that charging wire or the battery will run low

2....Eliminate or rebuild the terminals in the bulkhead connector (at least on the two large black and red wires) so they will carry the current. Disconnect the two ammeter wires and bolt them/ splice them together. When you bypass the ammeter in this way, one advantage is, that the two original wires (red an black) now become parallel, acting as feeds INTO the interior. This helps with "the problem" and since they no longer carry charging current, part of the problem is "removed."

3...Fusing/ breaker on the new charge wire. This depends on the alternator output and the size of wire. You need VASTLY oversize wire, DO NOT go by conventional size charts. In other words if you think you need no6, you may need no 4.

Depending on what chart/ recommendation you read, a near 100A output is "right at" the top edge of no6. You may INDEED want to consider no4 instead