I put a 22 gal fuel cell where the spare tire was
It was really easy to do

The replacement fenders I founs already had a filler hole cut by some farmer years ago.

I should have put a vent on the filler hose besides the tank....it fills rather slow

This is a plastic foam filled tank You can open and clean it replace the foam if nessary...doesn't rust and is real safe

I left the cover can home....wanted it to look farm and no one notices it