1972 Aux fuel tanks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

PMEnterprises · 01-05-2009, 12:21 PM

I have a 1972 C20 Custom camper with twin spare tanks. The fillers are behind Doors, forward of the rear wheels. They were dealer installed but do not show on the RPO sticker in the glove box. Ant idea where there is a breakdown of what the code intails?? It does show code Z81 Custom camper equipment and code UY1 Camper wiring but nothing for Aux. Tanks??

**special-K** · 01-05-2009, 01:36 PM

Hi and welcome to the site.Those tanks are aftermarket,many were dealer installed.`72 was the only year for an auxilary tank option and those are only on the driver side.The filler comes through the same bodyline as factory fillers.I`ll find a picture...

PMEnterprises · 01-07-2009, 01:14 AM

Thanks for the welcome. Glad to be here. I will post some pictures we I have a bit more time. The truck has been in the family since it was new and I will check around and see if I can find out when/how they were actually installed. I went on a camping trip in when it was new and I was 10 and remember having to fill those tanks, all three of them, when we stopped for gas. Another question I have is about the aftermarket A/C that was added to it a couple of years later. Is it better to leave it on the truck or remove it. Thanks again!!

Buford · 01-07-2009, 01:56 AM

I check my 1971 GMC because I also have the dealer installed dual saddle tanks with the filler tubes under the rear wheel well. The glove compartment doesn't list a code for additional tanks. I check the original sales invoice and it shows the saddle tanks were and additional accessory from the GMC dealer ($100.00 for both). It would probably only list it on the glovebox if it was installed at the factory versus the dealer. I'm sure if it is different someone here will know though

**special-K** · 01-07-2009, 06:29 AM

Yeah,only`72s had an auxilary tank option.There was an active GM accessory program which included auxilary tanks.
That`s cool your truck is an hierloom with memories.
I would leave the a/c is intact.If non-working I`d probably leave it untless it became a problem or I needed access and it was in the way.

PMEnterprises · 01-07-2009, 09:16 AM

My Uncle who lived in California bought it new in 1972 and my Dad bought it from him in 1989. I was serving in the US Navy and stationed in San Diego at the time and drove it home for him on leave that year. I have since retired from the USN and have been bugging him for a few years to sell it to me. It had 64K on it when I drove it home and he used it very little it now has 72k on it and I plan on doing a restoration on it since I got him to sell it to me finally.. Thanks for the replies....USN Retired!

**special-K** · 01-07-2009, 04:44 PM

That`s a great history.You`ve got to be sure to keep us up with it.Welcome rom Maryland and condrats on the retirement.

**john** · 01-07-2009, 04:51 PM

to the board. Pics would be nice.

crites_72 · 01-07-2009, 04:52 PM

my 72 parts truck has an aux fuel tank, and the filler comes out of the wheel well. i just figured it was a dealer install.

**special-K** · 01-07-2009, 08:10 PM

DJ,that would be dealer/aftermarket.

01-05-2009, 12:21 PM	#1
PMEnterprises Registered User Join Date: Jan 2009 Location: Monticello,Minnesota Posts: 3	1972 Aux fuel tanks I have a 1972 C20 Custom camper with twin spare tanks. The fillers are behind Doors, forward of the rear wheels. They were dealer installed but do not show on the RPO sticker in the glove box. Ant idea where there is a breakdown of what the code intails?? It does show code Z81 Custom camper equipment and code UY1 Camper wiring but nothing for Aux. Tanks??

01-05-2009, 01:36 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: !972 Aux fuel tanks Hi and welcome to the site.Those tanks are aftermarket,many were dealer installed.`72 was the only year for an auxilary tank option and those are only on the driver side.The filler comes through the same bodyline as factory fillers.I`ll find a picture... __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ Last edited by special-K; 01-05-2009 at 01:39 PM.

01-07-2009, 01:14 AM	#3
PMEnterprises Registered User Join Date: Jan 2009 Location: Monticello,Minnesota Posts: 3	Re: !972 Aux fuel tanks Thanks for the welcome. Glad to be here. I will post some pictures we I have a bit more time. The truck has been in the family since it was new and I will check around and see if I can find out when/how they were actually installed. I went on a camping trip in when it was new and I was 10 and remember having to fill those tanks, all three of them, when we stopped for gas. Another question I have is about the aftermarket A/C that was added to it a couple of years later. Is it better to leave it on the truck or remove it. Thanks again!!

01-07-2009, 01:56 AM	#4
Buford Registered User Join Date: Apr 2008 Location: Los Angeles, CA Posts: 27	Re: !972 Aux fuel tanks I check my 1971 GMC because I also have the dealer installed dual saddle tanks with the filler tubes under the rear wheel well. The glove compartment doesn't list a code for additional tanks. I check the original sales invoice and it shows the saddle tanks were and additional accessory from the GMC dealer ($100.00 for both). It would probably only list it on the glovebox if it was installed at the factory versus the dealer. I'm sure if it is different someone here will know though __________________ Buford - 1971 3/4 ton, Custom Camper, 350 Th, 350 SBC.

01-07-2009, 06:29 AM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: !972 Aux fuel tanks Yeah,only`72s had an auxilary tank option.There was an active GM accessory program which included auxilary tanks. That`s cool your truck is an hierloom with memories. I would leave the a/c is intact.If non-working I`d probably leave it untless it became a problem or I needed access and it was in the way. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-07-2009, 09:16 AM	#6
PMEnterprises Registered User Join Date: Jan 2009 Location: Monticello,Minnesota Posts: 3	Re: 1972 Aux fuel tanks My Uncle who lived in California bought it new in 1972 and my Dad bought it from him in 1989. I was serving in the US Navy and stationed in San Diego at the time and drove it home for him on leave that year. I have since retired from the USN and have been bugging him for a few years to sell it to me. It had 64K on it when I drove it home and he used it very little it now has 72k on it and I plan on doing a restoration on it since I got him to sell it to me finally.. Thanks for the replies....USN *Retired!*

01-07-2009, 04:44 PM	#7
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: !972 Aux fuel tanks That`s a great history.You`ve got to be sure to keep us up with it.Welcome rom Maryland and condrats on the retirement. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-07-2009, 04:51 PM	#8
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: !972 Aux fuel tanks to the board. Pics would be nice. __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

01-07-2009, 04:52 PM	#9
crites_72 Registered User Join Date: May 2008 Location: Mtn. Grove Mo. Posts: 155	Re: !972 Aux fuel tanks my 72 parts truck has an aux fuel tank, and the filler comes out of the wheel well. i just figured it was a dealer install. __________________ DJ

01-07-2009, 08:10 PM	#10
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,861	Re: 1972 Aux fuel tanks DJ,that would be dealer/aftermarket. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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