gas tank size 2014 freedom elite 26 ft

If it is a Ford E 350 or 450 and the tank is behind the rear axle, it is a 55 gallon tank, 50 usable and 5 in reserve when the light comes on on the dash you are in the reserve.

The fuel filter is going to be on the left side chassis rail inboard a little hard to get to at the height of the cab door, the fuel pump is in the tank and to replace it you need to drop the tank.

navegator

And if it is a Chevy Chassis it will have a 57 Gal Tank with a 5 Gal Reserve.