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Old 01-06-2019, 05:32 PM   #1
nitrosport_5
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Fuel tank install 1972 suburban

My suburban had a 45gal fabricated tank, the bolts holding it in are completely seized in the tank so I decided to put a stock tank back under it.

I Bought a tank kit from Summit that came with straps and everything I needed. When I put the tank up where it should go. The fuel filler neck is about 1/8th covered by the upper frame rail when the center lip of the tank is up tight against the bottom of the frame.

Am I doing somthing wrong, or is this just a case of garbage aftermarket parts? The filler and the vent are even coming out of the suburban, so why is the filler on the tank so much lower than the vent?
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Old 01-07-2019, 12:03 AM   #2
LockDoc
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Re: Fuel tank install 1972 suburban

Quote:
Originally Posted by nitrosport_5 View Post
My suburban had a 45gal fabricated tank, the bolts holding it in are completely seized in the tank so I decided to put a stock tank back under it.

I Bought a tank kit from Summit that came with straps and everything I needed. When I put the tank up where it should go. The fuel filler neck is about 1/8th covered by the upper frame rail when the center lip of the tank is up tight against the bottom of the frame.

Am I doing somthing wrong, or is this just a case of garbage aftermarket parts? The filler and the vent are even coming out of the suburban, so why is the filler on the tank so much lower than the vent?

Don't know for sure but I would guess it's for a later model Suburban and they just figure it should work.

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Old 01-07-2019, 12:51 AM   #3
lks dcvn
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Re: Fuel tank install 1972 suburban

It's the tank - the aftermarket tanks have a straight fill neck and the OEM stuff had one that comes up and then bends around the frame (at least they do on Blazers).

There are a few fixes for this:

1 - find a decent OEM filler neck and connect it to your new tank
2 - adapt a fitting to the tank to get around the frame challenge - some have found aftermarket filler necks and others have used copper ells - see pix.

1st pic is the what the stock filler neck looks like - not like your tank right?

Here is a thread that shows the two tanks and where they are different - http://67-72chevytrucks.com/vboard/s...d.php?t=696624

Here is a thread where a user found a creative way to have it work with an adapter on the tank - http://67-72chevytrucks.com/vboard/s...5&postcount=67
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Old 01-08-2019, 03:53 AM   #4
Bgrdmoose
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Re: Fuel tank install 1972 suburban

*Edited*

I think you know he can't sell stuff on here unless he becomes a paying member....

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Last edited by LockDoc; 01-08-2019 at 03:54 PM.
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Old 01-25-2019, 01:32 PM   #5
chevyrick86
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Re: Fuel tank install 1972 suburban

Go to you-tube and go to "Brothers trucks" channel and they have a video that explains how to install these replacement tanks. I just ran into the same issues putting one of those tanks in my 1968 Burb. The replacement tank will work but you have to notch the frame where the tank fuel neck hits the frame.
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