Hi Guys i really want help for this issue !

to Valerian, 67 dart 273, & Mannix. The 1976 A bodies ran a shunt system for charging. The alternator would charge the battery using a #10 wire that was located under the hood. Along this wire they ran a shunt to the ammeter in the dash. The shunt wires are #20 black and # 20 red. The interior [bulkhead] wires are #12 black [defogger], #12 black, and #12 red.

If the car was equipped with a rear window defogger it would likely have a 65 amp alternator. And the charging wires would be #8, red and black.