Finding a fuel tank that fits a Jeepster is not easy. As far as I know, there is only one aftermarket, non-original design for this frame. I did some research and talked to Genright about their YJ and CJ tanks, but none of them would fit without mods. Parts Dude sells a fabricated steel oversized tank for the Jeepster, so that's what I got. Could I have built a tank? Sure, but this one was priced right.
It did require some mods though. First was the fuel pump. I had to fit the EFI pump in the tank. Second, was the filler neck. I did not want to use the Jeepster filler neck so I had to shrink the filler neck connection on the tank to be able to use a CJ filler neck and hoses. Why not use the Jeepster filler neck? Because of crappy modern rubber parts. The filler that came on the Jeepster when we bought it was only a year old, and it was cracked to hell. Why can't aftermarket parts suppliers demand better wuality rubber? That's a soap box gripe for another day.
Here are some pics of the tank mods.
And the filler neck. This part is actually a fitting that mounts in the floor, with hoses that connect to the top and the bottom.
Finished filler neck. I wish I could have gotten the hoses to lay out a bit nicer, but whatever.. Oh, forgot to mention, the hoses, filler neck flange at the body and fuel cap are all CJ parts.