TJ Skid with YJ tank in a CJ - JeepForum.com
 
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post #1 of 11 Old 09-17-2018, 09:59 AM Thread Starter
nickmorris27
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TJ Skid with YJ tank in a CJ

First post here...
Just wondering if anyone has done this or what would need to be done. If this doesn't work, I may go about making my own.

1st- I am wondering if a Warn TJ gas tank skid plate will hold a 90's YJ plastic 20gal tank. I could get a TJ tank, but would that fit?... I do have 1" body lift.
2nd- Will a TJ gas tank skid fit a CJ7 frame? Exhaust can be modified.

Thanks in advance.

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post #2 of 11 Old 09-17-2018, 10:09 AM
jeepwhore
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I think you're putting the cart before the horse......unfortunately the YJ tank is too wide to fit between the CJ frame rails so your questions are kind of moot....Sorry to be the bearer of bad news, lol.

'84 CJ-17: 17" stretch, locked Toy axles, 5.5" lift, FI, AX15, D300 w/twin sticks, boatsides & junk.
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post #3 of 11 Old 09-17-2018, 09:45 PM
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Also the filler is in a different position, so a fair bit of work to get it on, even if the frame was big enough.

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post #4 of 11 Old 09-18-2018, 06:18 AM
REDnBLUES
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I have a YJ tank in mine using a CJ skidplate. I used a MTS replacement tank for an early YJ 4 cylinder when I went fuel injection, and yes it fits.

Sorry I can't comment on the TJ skidplate though.

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post #5 of 11 Old 09-18-2018, 07:33 AM
jeepwhore
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Quote:
Originally Posted by REDnBLUES View Post
I have a YJ tank in mine using a CJ skidplate. I used a MTS replacement tank for an early YJ 4 cylinder when I went fuel injection, and yes it fits.

Sorry I can't comment on the TJ skidplate though.

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That would be a YJ 15 gal. tank, not the 20 gal being asked about though.

'84 CJ-17: 17" stretch, locked Toy axles, 5.5" lift, FI, AX15, D300 w/twin sticks, boatsides & junk.
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post #6 of 11 Old 09-18-2018, 08:08 AM Thread Starter
nickmorris27
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I currently have a YJ tub and left the gas filler on the driver side. I am currently using an early YJ metal 15gal tank that is similar to the CJ 15 gal tank with CJ skid. No fuel pump in the tank and filler necks are on the driver side. Now I am doing a 4.0L swap and got a 15/20 Gal (same footprint) plastic YJ tank with it since i need fuel pump. I liked the idea of having an internal factory pressure pump. I thought the frame rails had the same inner dimensions in the rear. I know the front is different. Does anyone know the size difference. I guess the question now is that..
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post #7 of 11 Old 09-18-2018, 10:28 AM
Bobs85Reny
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I have both a yj and cj's. The yj we are doing exactly what you are looking to do. It has the 20 gal tank with the mts fuel system. I can give you some measurements tonight but there is no way that tank would fit in the cj frame. even using a yj tub.

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post #8 of 11 Old 09-18-2018, 10:33 AM
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here is a link for what we did so far.
https://www.jeepforum.com/forum/f12/...grade-4118161/

Told my girl I just had to forget her, Rather buy me a new cartburettor,
So she made tracks sayin' ths is the end now, Cars don't talk back they're just four wheeled friends now
"Queen"
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post #9 of 11 Old 09-18-2018, 11:06 AM Thread Starter
nickmorris27
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Thanks Bobs85Reny

I think I'm going to get the fuel pump for the 15gal sending unit and add it the the existing unit in the tank.

Not the direction I was hoping for, but I guess I'm kinda stuck here.
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post #10 of 11 Old 09-18-2018, 09:42 PM
REDnBLUES
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Quote:
Originally Posted by jeepwhore View Post
That would be a YJ 15 gal. tank, not the 20 gal being asked about though.
Oops, missed that. Sorry guys

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post #11 of 11 Old 09-18-2018, 11:30 PM
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The difference in width at the rear is equal to the thickness of both frame rails. On a CJ, the outside of the frame rails lines up with the sides of the inner wheel well. On a YJ, it's the inside of the frame rails that does.

'84 CJ-17: 17" stretch, locked Toy axles, 5.5" lift, FI, AX15, D300 w/twin sticks, boatsides & junk.
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