W100 1/2 Ton Pickup 4WD V8-360 5.9L VIN 1 4-bbl (1988)
Fuel Return Line: Locations
Fuel Tank
The fuel tank is found at about the mid point of the vehicle, mounted inside the left frame rail. The fuel lines are routed along the frame rail to the fuel
pump, and canister. The filler mounts to the left bed side panel.