Ideas on gas tank re-shape? -
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Unread 02-23-2013, 09:02 AM   #1
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1989 YJ Wrangler 
Join Date: Feb 2011
Location: Phoenix, Arizona
Posts: 1,664
Ideas on gas tank re-shape?

Hey guys,

Here's the story. Going to start building my rig. I am going to run waggy springs on the front and rear to net me a little stretch. I am looking for 2 maybe 3" per axle whichever the offset pin and a 1" offset perch will get me. My problem as you know is in the rear with the tank. In the planning stage I looked into a genright tank to allow the clearance I seek. But those bad boys run $900 these days. I could have swung $700 like I believe they used to be. But said no way to $900.

I will be running a 9" SUA in the rear. I thought about the self clearance technique but dont think that would work to well if I end up with 3" of stretch and the larger 9" diff. I am looking for ideas on how I could re-shape or mold the gas tank to allow for proper clearance. I am not worried about the tank skid. I have the resources to modify that to whatever the tank comes out to be.

From the info I gathered I heat the tank. But am unsure with what. Would a propane torch be enough or should I look into an actual acetylene torch? Then I was thinking about heating some type of metal form to press into the tank to make a notch or a channel type thing. I have seen people recommend heating and beating it with a sledge. Is the tank really that hard to mold even with heat? Anyways looking for ideas / suggestions on how to mold the poly tank?



89 YJ.. My first jeep and I won't let it go. ▀||||▀

Current Project: None... I disgust myself.

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Unread 02-23-2013, 09:06 AM   #2
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1991 YJ Wrangler 
Join Date: Sep 2008
Location: USA
Posts: 1,392
Everything you need to know is right here.
Horsepower is like a hot girl with STDs. You know you want to hit it but you're afraid of the consequences.
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Unread 02-23-2013, 09:11 AM   #3
RIP one good jeeper
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1994 YJ Wrangler 
Join Date: Aug 2009
Location: Ripon, California
Posts: 20,369
I also got some good advice here:
Luck Favours The Prepared
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Unread 02-23-2013, 09:15 AM   #4
Web Wheeler
1990 YJ Wrangler 
Join Date: Jan 2011
Location: Helena, MT
Posts: 3,736
Check out these three build threads all of us have done it. like I mentioned in Canmans thread above there was mention of a camero tank that already has a dimple its mentioned in the pirate thread ,but no one seemed to elaberate on it.
build thread: '90 YJ 5.2 magnum MPI, AX15, NP231 SYE, Dana 30 4.56 open/ 8.8 4.56 detriot locker. 1" shackles
2" BL, 4" stretch all on saggy waggy springs.
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