Brown w/white stripe runs to terminal 4 on the voltage regulator.

I Googled "1966 Chevrolet truck wiring diagram" and came up with a couple to look at.


'38 Chevy 1-1/2 ton
'49 Chevy 1/2 ton
'54 Chevy 6400 2 ton
'55.2 GMC 3/4 ton
'56 GMC 1-ton

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