Thanks folks. I’ll likely remove the cluster (cautiously) because it has some rust issues from a leaky windshield seal. While it’s removed I want to try and get the speedometer, temp, and one other gauge working again.
I’ll try and get some pics of the lettered wires that the instructions do not make mention of.


1946 Chevy 1/2 ton "patina" pickup with a 1953 235 engine, otherwise all stock and unmolested!