Id say it the resistor in the sender.They arent very good new and after 40 years even worse.I did the one in my 65 in Stainless 3/8 it was like 70 bucks.Its not dead on but its real close.Usually if the ground is bad its bad.I just clamp a 14 gauge wire to mine and attach it to the floor.Better than the factory strap.Rocky


Chrysler Firepower