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Old 01-10-2019, 11:57 PM   #1
69Tom
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filler tube relocation - wood bed

So I just purchased a rear gas tank from Classic Industries as it was on sale. It doesn't appear to come with a filler tube, although maybe I'm wrong.

I plan on mounting the filler tube/opening in the bed floor as it's a stepside. Truck is a 70 C10, SWB with a wood floor.

I'd like a fuel cap that is somewhat flush with the wood floor. Anyone have any recommendations on where to get a good one? Pics would be cool if you have any.

I've run a bunch of searches and didn't seem to find what I'm looking for, hence the new post.

Thanks in advance.
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Old 01-11-2019, 12:02 AM   #2
dagnabbitt
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Re: filler tube relocation - wood bed

Here's a neat site that will have everything you need. I also have a 70 swb stepper and I have a similar plan: post some pics of yours.

http://www.tanksinc.com/index.cfm
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Old 01-11-2019, 12:57 AM   #3
kaycee
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Re: filler tube relocation - wood bed

Man I just hate it when I see a gas cap in the floor bed ,how do you keep from spilling gas on that pretty floor ? Then you cant get gas if you got something in the back that covers it up. Just My opinion don't mean to ruffle feathers but heres a little trick I used. And easy to do
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Old 01-11-2019, 01:12 AM   #4
69Tom
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Re: filler tube relocation - wood bed

Mine is a step side.
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Old 01-11-2019, 07:55 AM   #5
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Re: filler tube relocation - wood bed

You are correct. They do not come with a filler tube.

Did you buy the top fill, or side fill tank?

Top fill you have to go through the bed, side fill you can do what kaycee above did.

For top fill most people use a boat/marine/motorcycle style filler cap.

Here is a great site to get ideas. https://www.fillernecksupply.com/

Mine is the side fill, same as kaycee's. I used a mid 90's Chevy S10 setup including the door hinge assembly, plastic filler tube pocket, and the top 6 1/2" of the filler tube. Bought for $15 at a junk yard. The rest I cobbled together from the auto parts store, and Lowes. The cap is a Permacap which has a trap door top just like the new cars and trucks.

I did have to notch the left rear frame rail, trim the bottom of the left bedside(red arrow), and trim the bed support sill that runs over the tank as the tank top is above the frame when installed.

I also converted to LED side marker lights so there is no issue with the light being so close to the filler.

It fills pretty good, but you have to go at about half speed on the nozzle flow, or it backs up.

Here are some pics of the install.

There are tons of posts on this forum, just search for rear tank conversion and you will find plenty to look at.
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Old 01-11-2019, 07:55 AM   #6
clay68c10
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Re: filler tube relocation - wood bed

As a step side, you have more room in the fender to run the tubing up to the side marker light. Do a search on here and there’s some good info on that.

Edit: Zeroman beat me to it
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Old 01-11-2019, 01:50 PM   #7
kaycee
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Re: filler tube relocation - wood bed

Ditto what zeroman said Great minds think alike
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Old 01-11-2019, 02:06 PM   #8
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Re: filler tube relocation - wood bed

Thanks guys. I bought the center fill, so I'll probably just stick with a bed mount. Thanks for the info.
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