The gas gauge works, the SRS light goes on/off upon start, and when I turn on my headlights the panel lights up.

all accessories work

I have checked all the fuses with a continuity tester...every single one tested good.

Made sure all fuses were seated properly. replaced one, that looked corroded, but still tested okay.

what is everything else that I should check before replacing the instrument panel?

Thanks

 

None of your gauges are doing anything?

 

just the gas gauge, it goes all the way to full... which is not accurate. When I pull the fuse and turn it over the gas gauge does not work as well.

 

I've never really had any trouble with mine. Aside from bulbs, but I don't really consider that a "problem". More of just a minor inconvenience.
Have you done other work to anything else in the truck? Or did this start on its own?
The reason I ask, I just worked on a car that had a problem with the fuel gauge after replacing the SAI solenoid. I don't know what the actual problem was with it. It was pulling the 5 volt reference circuit down to 2.5 volts and causing a bunch of trouble. The gas gauge would go over full and then drop to empty.
Have you tried scanning the truck for codes?