[68 TT]

Glad it is working again.

Now you need to keep it that way. You need to increase the size of the wire from the alternator to the battery to handle the increased load that the new alternator can put out. With the stock size charge wire you are limiting the ability of the new alternator to do its job at best and at worst risking another melt down if the alternator tries to push too much juice through too small of a wire.

The stock wiring on most of the late model rigs with the high amp 12si that I have pulled apart have had 8-gauge wire and one with a longer travel path through the harness had 6-gauge. Pulling the wiring out of a new body style 88-up truck will give you the size you need with the correct ring terminal already in place on one end along with the terminal cover to match so that is where I would start unless it is easier for you to get new stranded 8-gauge wire and the right size ring terninals.

Make sure the alternator case has a good ground back to the battery as well. This will help you get the most out of what you have. I run a case ground wire back to the battery just to make sure there is a good path of travel to complete the charge circuit to take full advantage of what the alternator can do.