fuel tank selector switch? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kipps · 05-12-2019, 12:53 PM

Based on Hatzie's write-up, the 73-80 trucks used a 5-pin DPDT switch. Hatzie mentioned that some switches you buy would potentially include the sixth pin, but it needs to be removed for a stock application.

I would like to use that switch in a non-stock situation, and want all six pins. Does anyone know of a DPDT rocker switch that will fit right into these trucks that is a full six-pin DPDT?

**hatzie** · 05-14-2019, 02:21 AM

Do you have a rectangular hole in the dash already?

If you're retrofitting I'd use a toggle switch. A 1/2" round hole is easier to make than a rectangular hole that's properly aligned with the dash.

kipps · 05-14-2019, 05:45 PM

I already have the factory switch hole in the dash.

It appears the switch from a Ford OBS truck will do exactly what I want. I may have to reshape the hole a little.

05-12-2019, 12:53 PM	#1
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	fuel tank selector switch? Based on Hatzie's write-up, the 73-80 trucks used a 5-pin DPDT switch. Hatzie mentioned that some switches you buy would potentially include the sixth pin, but it needs to be removed for a stock application. I would like to use that switch in a non-stock situation, and want all six pins. Does anyone know of a DPDT rocker switch that will fit right into these trucks that is a full six-pin DPDT? __________________ 1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!

05-14-2019, 02:21 AM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,977	Re: fuel tank selector switch? Do you have a rectangular hole in the dash already? If you're retrofitting I'd use a toggle switch. A 1/2" round hole is easier to make than a rectangular hole that's properly aligned with the dash. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful.

05-14-2019, 05:45 PM	#3
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	Re: fuel tank selector switch? I already have the factory switch hole in the dash. It appears the switch from a Ford OBS truck will do exactly what I want. I may have to reshape the hole a little. __________________ 1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!

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