kdcgrohl
+1y
according to my haynes manual, earlie models use a "bw" for the magnet clutch. "bw" should = black wire white stripe.
according to the same book your stop light switch should be connected to "gw", green wire white stripe.
and the heater choke coil should be a "y", yellow.
sorry i dont have that model truck to look at to make sure, maybe that would be a direction anyway...