[RedBed]

Spoke to classicparts.com and asked them if they could tell me what sensor went with the gauge they sent me, and the only info they could give me was for the one they sell, which is their part number.

So I peeled back the sticker on their box, and under it was the distributor of the gauge (counterpart automotive) and called them, and they told me AC Delco G1852 was the right sensor.

So I ordered it and have my fingers crossed.