Longbed fuel tank in a shortbed?

[Bounty Hunter]

Anybody done it? I swapped out my fuel pump today, turns out the '91 longbed 2.5L I have for parts has the same pump and sending unit as my '88 shortbed 4.0L. I was eyeing up the larger tank for an upgrade if it'll work.

[Pete M]

Well, it won't bolt right up if that's what you mean, but take a length measurement of the longbed tank and crawl underneath and see if it'll clear the rear axle. Anything can be *made* to fit. :D

Jeep on!

--Pete

[Bounty Hunter]

At first glance (read 'without measuring'), it looks like it would clear the rear axle but may have to be spaced down to clear bed crossmembers. The forward upper edge of the shortbed tank is clearanced for the crossmember, not sure on the LWB tank.

[Eagle]

I think to make it fit you would have to set it lower than stock, and even then I suspect there would have to be some compromises made.

 

Fire up the tape measure.

[GirsMJ86]

did you ever figure out if this would work? I'm looking into doin it too if i get me hands on a shortbed.

[matrix37495]

i am also curious. i could use the extra fuel on the interstate

[skimore11]

Any progress on this?

[Bounty Hunter]

I'll know soon, need to drop the shortbed tank to do some work. Stumpy found a square hole in the shortbed frame further back closer to the axle, same type hole the mounting brackets use. It may be useful in mounting the larger tank if it even clears the axle.