Check out this link. It should answer your question about the wires.
http://www.classictruckshop.com/one_wire.asp


Joe - (Buckeye Bowtie)
"Remember it takes about 2850 bolts to built a Chevy Truck and only 1 NUT to scatter them all over the highway"

1950 3100
1971 C-10
1939 Buick Century