my gas gauge reads empty all the time. when I unplug the power wire from the sender it goes to full. I haven't checked my ground wire yet. I'm just looking for a little insight before I start ripping crap apart.
64 sending units are 0-30 ohm .65 and later are 0-90 ohm
I can take a 30 ohm 64 gas gauge and stick it in a 65 and it works perfectly. As a matter of fact, when I restore the Supercar clusters, I don't separate 63-64 fuel gauges from the 65 ones. They are the same. All of the gas tank sending units I've seen are all the same for 62-65 too. Go look-up replacement gas tank sending units from Chevy2only.