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Rear of truck not level 36 Gal. tank

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Old 06-20-2017, 08:19 AM
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Default Rear of truck not level 36 Gal. tank

I have the 36 gallon fuel tank and the other day I filled it and noticed that the truck was lower on the left side. I measured it and it was down about an inch, now it is about 1/2 full and it is around 3/8" down. Has anyone else noticed this?
Old 06-20-2017, 08:24 AM
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Never mind. Apparently that much lean is in spec for a full tank of gas.

Edited per UNBROKEN's feedback.

Last edited by LoneWolfTrucker; 06-20-2017 at 09:22 AM.
Old 06-20-2017, 08:28 AM
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why would it not be lower on the tank side... that's over 200 lbs of fuel..
Old 06-20-2017, 08:33 AM
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Originally Posted by techrep
why would it not be lower on the tank side... that's over 200 lbs of fuel..
The tank is on the left.
Old 06-20-2017, 09:09 AM
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Originally Posted by LoneWolfTrucker
No, sounds like a suspension issue on the left side, maybe a bad shock or spring. Take it in, it shouldn't do that.
It's not a suspension issue, it's a weight issue.
It sits an inch lower on the tank (left) side when full. At 6.3 lbs per gallon that's just shy of 227 extra pounds on that side. He even said it's not as low with less fuel in it.
And just to clarify, if a truck is just sitting lower on one side just because, it will have nothing whatsoever to do with the shocks. They don't carry any load, that's the springs job.
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Old 06-20-2017, 09:12 AM
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Originally Posted by UNBROKEN
It's not a suspension issue, it's a weight issue.
It sits an inch lower on the tank (left) side when full. At 6.3 lbs per gallon that's just shy of 227 extra pounds on that side. He even said it's not as low with less fuel in it.
And just to clarify, if a truck is just sitting lower on one side just because, it will have nothing whatsoever to do with the shocks. They don't carry any load, that's the springs job.
Okeedokee. I wouldn't think full would change the height as it should be engineered into the truck.

Last edited by LoneWolfTrucker; 06-20-2017 at 09:17 AM.
Old 06-20-2017, 09:17 AM
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No, they can't. Go measure your truck with the shocks on, take them off and measure again. There will be no difference. Shocks control oscillation, springs carry weight and determine ride height. When you pull that stock shock off you'll notice you can easily cycle it with your bare hands....that should answer for you whether it can actually carry any weight of a full size truck.

And if Ford built in more height on the left side to compensate for a full 36 gallon tank someone would be crying because the truck was higher on that side when it's was near empty. You can't please everyone.

Last edited by UNBROKEN; 06-20-2017 at 09:20 AM.
Old 06-20-2017, 09:17 AM
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Originally Posted by UNBROKEN
No, they can't. Go measure your truck with the shocks on, take them off and measure again. There will be no difference. Shocks control oscillation, springs carry weight and determine ride height.

And if Ford built in more height on the left side to compensate for a full 36 gallon tank someone would be crying because the truck was higher on that side when it's was. Ear empty. You can't please everyone.
I retract.
Old 06-20-2017, 09:18 AM
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There was another thread on this fairly recently. I think the consensus was the weight of the fuel made the truck lean slightly.

Just like when you get in the driver's seat... it'll lean. More if you're a big person.
Old 06-20-2017, 10:19 AM
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Daaaannng, I have the 36 gallon tank and I am a big guy. I am surprised I haven't flipped mine over when I get in.
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