When I upgraded from a 2G to 3G in my F-150 indeed I grabbed the alternator wiring harness and the 3G from the donor 1995 F-150. This made the swap even easier as everything was exactly the correct length. When I upgraded the stock Bosch alternator to a 3G again I grabbed the harness and alternator from the donor Ranger. It was a little long for fitment in the XR, but too long is way better than too short.brokencase wrote: ↑Wed Feb 13, 2019 2:04 pmYea, but the Scorpio schematic does not show a fuseable link on the big wire.
Might be possible to pull the big wire & fusabile link from the donor at the bone yard?
But if the gauge of wire in the Scorpio is adequete, just use it.
It's harder to adapt the three wire. 130 amps should be plenty. I think that is what the Explorers are running from the 3g unit.
Power has always been solid on my Sport trac. I think its original battery lasted 8 years (which was pretty amazing)
So yes, I would certainly look at the harness from the donor Nissan, but if it didn't work for some reason, no biggie, I can come up with something. I doubt I'd re-use the wire in the Scorpio. It's 32 years old and deserves to be tossed.
I'll stick with the 2-wire and keep life simple.