Anyone ever use the Polyethylene replacement Tank

**John Strenk** · 09-24-2009, 12:19 PM

I've been thinking of installing one of these in my jeep and wonder if anyone had any problem with one.

Polyethylene Gas Tank and Other Jeep Parts and Jeep Accessories by 4 Wheel Drive Hardware

I was thinking of upgrading to the 78 and later filler on my 76.

The 21 gallon tank might be nice also but I don't think an extra $100.00+ for 5 gallons would be worth it for me.

A stainless or plastic oil pan would be nice also.

Comments? suggestions?

**Cutlass327** · 09-24-2009, 12:33 PM

I'll be watching this thread too.. Mine just started leaking bad enough to start looking into a new one. Price isn't too bad either, considering I've paid just over $100 for a steel replacement for the Ranger and my F150 I had.. and the F150's started leaking a few years later, even with me using 3 cans of rubberized undercoating on it when I installed it!

**abbysdaddy** · 09-24-2009, 12:40 PM

I had a shop install one while the jeep was getting other issues fixed. They had a hard time installing the sending unit - didn't fit exactly right. I don't know if the metal tank has the same fitment issues or not. I'd probably get the metal one if I had a do-over; the sending unit might fit better.

**John Strenk** · 09-24-2009, 12:47 PM

I'm in the salt all winter so I need something that won't rust away in a couple of years.

**NelsonATC** · 09-24-2009, 12:59 PM

I have the 2 gallon tank. No issues. If I had to do it again, I would go with the 15. The 21 hangs down a few inches, taking away from my decent angle. Took a good hit to the skid plate a few weeks ago. Good news is no dammage to the tank

bleoh · 09-24-2009, 01:22 PM

Quote:

Originally Posted by abbysdaddy

I had a shop install one while the jeep was getting other issues fixed. They had a hard time installing the sending unit - didn't fit exactly right. I don't know if the metal tank has the same fitment issues or not. I'd probably get the metal one if I had a do-over; the sending unit might fit better.

I had an issue with my sending unit starting to leak. I tracked down the mfg and called them. I was thinking I needed a new gasket and the standard round profile would not work, so I was looking for their square one. Guy on the phone said the typical issue was that the tabs on the sending unit need to be bent in more vs. a steel tank. He sent me a gasket no charge and I have not had an issue since.

Brian.

**abbysdaddy** · 09-24-2009, 03:53 PM

Thanks Brian. It does leak and I have been meaning to fix it. This will help a bunch.

Roy

OldSailor · 09-25-2009, 02:30 AM

I've had a polyethylene tank like that (got it from FWDH) in my CJ7 since 1993, and I have had absolutely no problems with it. I used the OEM fuel tank skid/mounting plate on it.

JavaTee · 09-25-2009, 04:44 AM

I picked up the 21 gallon poly tank (a few years back when I did my CJ's makeover), and I LOVE it. With the less than great gas mileage, it's nice to not have to worry on longer trips (camping & crusing the Blue Ridge Parkway).

As noted above, it does hang down some, but for me, I like it.

Later, T.J.

**CJ51973** · 09-25-2009, 06:43 AM

I did an under the seat tank on my 73. No worries about impact. I don't know how they would fit on the later tub. But they are only 10-11 gallons. If I remember right you can get right and left hand so technically you can put dual tanks in. Just a thought.

**certifiablejeep** · 09-25-2009, 08:33 AM

I put one on the silver Jeep I built up... I love the extra capacity as now I can go 250+ miles without refuleing, but it does hang down 3.5 inches or so... put enough lift on it and it might not be an issue...

http://www.certifiablejeep.com/images/freejeep/page60/large/100_0252.jpg

cb

h2ojeep · 09-25-2009, 12:40 PM

I did a conversion about a year ago and it has been a great improvement. there was a thread about a week ago that has a some good pointers.

Questions about upgrading from 15gal steel to stock 20gal poly fuel tank HeepToJeep

I would note that the after market tank I got did not have a sock on the dip tube. I refitted all with an internal fuel pump including a sock. I think a sock is a good thing.

CJhollic · 09-26-2009, 11:27 AM

I also have the 21 gallon tank. The extra mileage I get really helps on hunting trips. The downside is that I ended up with a larger gap between the skid plate and where it mounts to the tub. No problem I am going to put a piece of sheet metal there.

The nice thing about these tanks is that if they take a hit they dont seem to get dented and damaged.

I havent ever regretted putting it in.

h2ojeep · 09-29-2009, 12:10 AM

Some suggestions:

The poly tanks need a heat shield if closer than a few inches from the exhaust. Mine was close and a made a shield from sheet metal. I trimmed the metal and filed the edges, BUT the edges are still sharp and a hazard when working around that part the jeep.

If i had it to do again (and I will probably refit another time) I would suggest using old license plates. About the right size, (at least on mine) and the edges are not sharp.

**Cutlass327** · 09-29-2009, 12:59 AM

Couldn't you roll the edge over?