Stewart warner makers and markets replacement fuel gage sender units. It is the depth of the tank rather than the capacity that is important when ordering from them. I used one of their units in my Foretravel. Any auto parts store that handles Stewart Warner equipment can get them.
Brad & Lucy aka the Geezer & The Hedgehog
1990 Foretravel Detroit powered
Kitty Kat earl
Car trailer with Whitey Ford the Explorer