OK, changed my gauges to Equus gauges, made a way to hold them in the original unit and everything. I was looking at wiring up the fuel gauge, since I bought the GM 0-90 sender and wanted to get the right wire.
Anyway, I dropped the tank (What a chore) and pulled the sender out.
As you can see, it doesn't look too good. I wired up the gauge to it and when the sender is on empty, it's pretty good, but as I move it the gauge jumps all over the place. Is there a way to replace just the sender, or am I stuck with finding a new one?