It is easiest to remove the bed,there are only about 8 bolts ,wire harness and grounds the rest is pretty self explanatory .
Replace the fuel leveling sensor that is on the fuel sending unit that's inside of the fuel tank.
That is an electric fuel pump and it is inside of the fuel tank.
Drain the fuel tank, and replace fuel filter.Drain the fuel tank, and replace fuel filter.
Drop fuel tank
It is inside of the fuel tank. You can either raise the bed up are just drop the tank out from under the truck to get to it. It comes out of the TOP of the fuel tank.
24 gallons
You will have to drop the fuel tank to replace it as it is in the top of the tank.
replace the fuel pump that is in the gas tank.
Remove fuel tank
The 1986 Chevrolet C10 pickup truck fuel filter is located inside of the fuel tank. The fuel tank will need to be removed in order to change the fuel filter.
You have to remove the gas tank.
The fuel pump is located inside the gas tank on the left side of the truck just ahead of the rear tire. You have to unbolt the tank and drop it Dow to access the fuel pump from the top of the tank. This took me about 2 hrs.