Dash Cluster

I have a 1966 dodge dart ,The fuel guage isn't working ,There is a little plugin voltage regulator behind the gauges ,Is there a better and improved regulator that I can purchase .Hope I explained this properly,Thanks Paul

I may be wrong but I thought the earlier Darts had the voltage regulator in the fuel gauge?

I made an electronic VR with a few parts ordered online. Bought enough to cobble together 5 voltage regs for about 20 bucks delivered to my front door.