Fuel gauge & sender resistance issue. HELP

!! Good goin !!

That cell mount looks a lot like what I call the "old style standard" mount.

The older Chivvies used that mount, as did my ?? 62 Landcruiser ?? and the SW gauges sender which never was very helpful, either. (The SW fuel guage is a bridge design, which SHOULD be accurate, but the meter was not damped, so the damn thing continually flopped around all over in there. I never did stop carrying extra gas for the thing.