Burned bulk head connection

From the picture on post #8. I took apart a 70's dodge pickup with the big alternator years ago. It had this same harness with the big wires [#8, I think]. There was a brass strip behind the ammeter. It acted as a shunt. This took some of the amperage away from the ammeter. Never saw any signs of heat damage.

If you have a good working system now and want to add a bigger alternator, just ADD a wire of the same size as the alternator wire [# 12?] between the alternator post and the positive battery terminal. [with a fusible link]. Your ammeter will read half current, or so.