I forgot to ask if you tested the alternator? If you have good batteries it’ll crank over strong, but will act up when it’s running and show low voltage if the alternator isn’t making any juice

Thanks I will add that to the things to do list.

post what you find out,

Will do.Batteries have been charging for 10 hours now and there still drawing 10 amps- I don’t ever remember seeing that happen.Batteries were both new last fall.

Been putzing on truck between other projects the good news is I should never have to clean up the grounds again.I think there may be a ground wire from the cluster to cab probably push in my shop for Tuesday supposed to be a rain day.

No-I have a lift pump coming tomorrow and I got the gauges working.

So I replaced the lift pump which wasn’t the problem but has been leaking for many years and tried blowing air into fuel tanks and it turned out the fuel tank selector valve wasn’t allowing fuel to come through.Got the valve replaced and still won’t start so swapped the cam sensor and found a broken wire.Got the wire temporarily soldered together and it fired up.The volt gauge turned out being the background cardboard pressing down on the indicator so I hot glued it up a little.The fuel gauge seemed to be controlled by the selector valve and that’s straightened away also.So if you think your the only one that has 3 or 4 things go wrong at the same time your not.

Glad you got it figured out