My bet is the wires from the original regulator don't go anywhere anymore. Internal regulator GM alternators came along about 1973 and is most likely what you have. A picture of your alternator would be helpful.
BC 1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc 1949 GMC 250 project in waiting 1960 C60 pasture art Retired GM dealer tech. 1980 - 2022
