Dash Cluster

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.
The regulator is a plug in for the 66 Darts. Here's a good thread about 66 Dart gas gauges. 66 Dart gas Gauge