You may be over thinking the gas tank . I run a Savvy skid in the raised position , and I have only hit it once . I suspect you would hit it less as you have a better departure angle .
I don't think I'd hit it much either...but I just don't want to see
any more of it than is necessary.
Exactly why I said hell with it! Lol! Besides with the new plans, i'll be installing a cell before too long.
I hear that, man...and if I didn't need all the cargo space available (and more) that's what I'd be doing, too. Swap the pump/sender/regulator/filter - which will now forevermore be known as the Fluid Catalytic Cracking Unit* - into the cell and be done with it.
Like a fuel filter from a C5 Corvette. It has a built in regulator. Wix 33737.
You learn something new every day.
I've put a little thought into the fuel tank myself. Beasley has a good a point, even in my rock strewn world in the Sierra's my Savvy skid works good and my tank scraping is a minimal issue (although I scrape it A LOT).
What I have always thought is that there has got to be another tank, out of another vehicle (maybe even a dodge with a common fuel pump) that is SMALLER or shaped in a manor so as to provide better clearance that could be adapted to the stock location. All it would take is some leg work in the junkyard, some measurements and a little trial and error. After that, a skid could be fabbed up using factory mounting locations and you're done!~ I KNOW this tank exists, and the guy who figures this out is going to start a VERY popular trend.
You're all over my thought process; shallower tank in stock location. The issue - and in case nobody knew this, it's a HUGE issue - is the sending unit. The TJ uses - and correct me if I'm wrong, here - a sending unit with a resistance of 20 to 220 ohms...which seems to be rather odd, aside from other Mopar stuff from similar years. This is one big reason that people use the back-of-the-tub fuel cell and stuff the TJ's FCCU - that's the Fluid Catalytic Cracking Unit, for those of you that don't remember - into the cell...you don't have to worry about your gas gauge f****** up on you because the resistance is the same. There are ways to make another sending unit function, but I honestly don't know the in's and out's of them at this point; thus, the trick would be to:
- Find a sending unit that has the same resistance but will fit in an aftermarket fuel cell or shallower tank.
- Find a tank/sending unit combination that will bolt into the stock location that gives better clearance and
plays nicely with the TJ gauges.
- Discover the in's and out's of altering sending unit resistance, and thus rendering the stock sending unit capable of being placed in another cell/tank.
Either way, I want a high-clearance tank that doesn't give away too much fuel capacity...and knowing that I'm not going to do a rear stretch at any foreseeable point helps me a bit. I may go with a basic high-position Savvy for awhile, but this seems like a fun side project to me. It's worth some Muppet Labs time.
*It makes shoes for orphans. Nice job breaking it, hero.