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ray_mcavoy · 03-16-2017, 02:41 PM

The stock configuration for 63-66 had the output wire from the alternator running to a main power distribution point (which was the 2 screw terminal bus bar on the horn relay). From there, a main feed wire ran to the cab and another wire ran across the radiator support and connected to the positive battery terminal. The wire from the positive battery terminal over to the distribution point was originally part of the positive battery cable assembly. Replacement battery cables just have that short pigtail with the butt connector so you can splice onto the existing wire.

The configuration for 60-62 was similar except it used the "B" terminal on the generator's external regulator as the main power distribution point.

The diagram posted appears to be for an aftermarket replacement type harness ... not stock for 60-66. That setup is using the large BATT stud on the starter solenoid as the main power distribution point. And therefore doesn't need that pigtail off the positive battery terminal. The only thing to be aware of with that layout is that it won't allow you to hook up a factory battery gauge (ammeter) if you were planning on using one.

03-16-2017, 02:41 PM	#6
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,373	Re: Alternator to Battery connection The stock configuration for 63-66 had the output wire from the alternator running to a main power distribution point (which was the 2 screw terminal bus bar on the horn relay). From there, a main feed wire ran to the cab and another wire ran across the radiator support and connected to the positive battery terminal. The wire from the positive battery terminal over to the distribution point was originally part of the positive battery cable assembly. Replacement battery cables just have that short pigtail with the butt connector so you can splice onto the existing wire. The configuration for 60-62 was similar except it used the "B" terminal on the generator's external regulator as the main power distribution point. The diagram posted appears to be for an aftermarket replacement type harness ... not stock for 60-66. That setup is using the large BATT stud on the starter solenoid as the main power distribution point. And therefore doesn't need that pigtail off the positive battery terminal. The only thing to be aware of with that layout is that it won't allow you to hook up a factory battery gauge (ammeter) if you were planning on using one.