The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

**Bill72** · 01-18-2011, 10:13 PM

From your avatar it looks like you have the factory installed auxillary tank that was available in 72 and maybe 71. If you do, then there should be a valve on the floor next to the seat for switching tanks and a knob on the dash for switching the gauge over. Your SPID would list this as NL2 AUX FUEL. I've been looking for one too and have only found garbage so far.

01-18-2011, 10:13 PM	#8
Bill72 Registered User Join Date: Feb 2008 Location: Fort Sumner, NM Posts: 299	Re: Underbed Gas Tank, but NOT behind axle.. From your avatar it looks like you have the factory installed auxillary tank that was available in 72 and maybe 71. If you do, then there should be a valve on the floor next to the seat for switching tanks and a knob on the dash for switching the gauge over. Your SPID would list this as NL2 AUX FUEL. I've been looking for one too and have only found garbage so far. Last edited by Bill72; 01-18-2011 at 10:16 PM.