The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Auxiliary Fuel Tanks in a C-20

**Stocker** · 09-30-2019, 01:04 PM

Those are aftermarket tanks. My K20 has aftermarket saddle tanks (Travel Tanks, no longer in business). Mine fill through doors in the bedsides. Your selector appears same as mine and does not switch the gauge; I have a 3-way electrical switch at the bottom of the dash for the gauge. No clue about the wiring pic, have you tried tracing the wires to see where they go?

09-30-2019, 01:04 PM	#2
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,547	Re: Auxiliary Fuel Tanks in a C-20 Those are aftermarket tanks. My K20 has aftermarket saddle tanks (Travel Tanks, no longer in business). Mine fill through doors in the bedsides. Your selector appears same as mine and does not switch the gauge; I have a 3-way electrical switch at the bottom of the dash for the gauge. No clue about the wiring pic, have you tried tracing the wires to see where they go? __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay