gauges gone wonky
What cuda said. On these old cars, once you disturb one thing, all the other old parts want in on it. It's old tired iron; it was going to go out on the next pothole, anyhow.
For example, did the mad ammeter bypass, good . 50 miles, speedometer goes out, new one, 20 miles, then need a re-pop cluster board, (this is getting old, and we are getting too fast in dropping the column, etc.) Now the gas gauge, with new sender, is empty at 1/4. BWHAAAAAAA lol