The 1947 - Present Chevrolet & GMC Truck Message Board Network

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The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- The 1967 - 1972 Chevrolet & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=3)

- - Reason behind extra tanks? (https://67-72chevytrucks.com/vboard/showthread.php?t=701421)

JCD	03-20-2016 04:07 PM

Re: Reason behind extra tanks?

1 Attachment(s)

Quote:

Originally Posted by 57taskforce (Post 7529108)

Driver side is indeed factory my K/20 has the nl2 tank option as well. That's a hell of a spid by the way, comfortilt, plaid bench,A/C,camper options, etc. that's a nicely optioned truck.

Thanks.. I got it for a steal of a price too.
When I got it home and was able to discover it more, I found it had a few additions that led me to believe it may have been a forestry truck.

But the siren was the main give away.

J.

volksworld

03-20-2016 04:16 PM

Re: Reason behind extra tanks?

i'm from long island originally too...sure there were plenty of stations but in the early 70's almost all were 2-bay repair shops that also sold gas....and they closed early...if we needed gas after midnight there was only one station on the parkway that was open and it wasnt cheap....you have to see if the siren is hot wired to a dash knob or tied to door switches cause "on guard" brand car alarms used the same siren...my 69 camaro had one

JCD	03-21-2016 12:54 AM

Re: Reason behind extra tanks?

Quote:

Originally Posted by volksworld (Post 7529171)

....you have to see if the siren is hot wired to a dash knob or tied to door switches cause "on guard" brand car alarms used the same siren...my 69 camaro had one

The siren was wired to the horn button.
It's not a newer siren, as it sounds like the typical siren of the 60s 70s.
A slow gyrating wail.

I believe sirens on street cars is illegal.
I didn't remove it, but I did rewire the horn to work normally.

J.

special-K

03-21-2016 05:49 AM

Re: Reason behind extra tanks?

Quote:

Originally Posted by special-K (Post 7528754)

All that type of tank/filler are aftermarket. Back East you didn't see these added tanks

Quote:

Originally Posted by frenchy51 (Post 7528761)

How can it be aftermarket when his SPID shows an aux. tank option? And which xtra tank is "correct"? The driver or Pass. side?
I ask because my 72 Highlander has 2 xtra tanks both with aluminum locking doors. They don't show on the SPID so I assume they are aftermarket but what does the factory xtra tank filler look like? Thanks

That is the factory aux. tank on the driver side. I meant the tanks with that type of filler (doors).

Papa Smurf

03-23-2016 10:33 AM

Re: Reason behind extra tanks?

I have a 72 C20 with the factory tank on the driver side. Not only was the tank factory, there is a switch in the instrument panel that changed the gauge from one tank to the other.

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