Perhaps a cylindrical fuel cell? I've toyed with this idea myself.
The parts shop that stocks part for Skylab II will not have parts for our year/model of Jeep
We cannot accurately judge the trajectory of a speeding critter (cat, dog, sasquatch)
Record heat waves and floods only occur when we visit that area
I think the cylindrical idea would be easiest next to installing one from an older CJ under the seat. If you don't have a tank under there for OBA, then just use an old air tank for a fuel tank in that location. You'd have to rig some sort of filler neck and tube to it, but most air tanks have a bung on the bottom for water drainage, which could easily be your fuel supply connection point. There are usually a few other bungs on the tank that you'd be able to use to connect a return line to, also. Go to a JY, find a fuel selector solenoid from a dual-tank pickup truck, and plumb/wire it in.
1978 CJ5 5.0HO/T177/D300, '86 D30/D44 WT axles, 'glass body, 31x10.5 BFG A/T, TDK galv'd frame - DD and weekend toy
The Napa Echlin part number is(or used to be) 2-2057. I have one on my Jeep.
Most any parts store should be able to get you these or something equivalent.
Is that a manually actuate valve or is it controlled by a dash mounted switch? Thinkin that might work nicely with my Scout's dual fuel tanks...
1985 CJ7 Project Phase One : 5.3L Vortec/4L60E, Moser axles for AMC20, Twin Stick'd Dana300 - Completed Phase Two: Bedliner, Rollcage, Seats, BESRK Rear Bumper w/ tire swing, Soft Top, and a few other goodies - Mostly Complete Phase Three: Waggy 44 front, Scout D44 Rear, 4.56's, ARB's (F/R) SOA with YJ Springs, 35x12.50x15 BFG MT - Not Even Close to beginning
Also a mostly rust-free 1970 Scout 800A That I'll get to start working on someday...
Chrome won't get you home...BUT Rattle Can Black may just get you back"