1997 E-250 4x2 Fuel Tank Capacity?

I just bought this van for work today. Its the longest one you can get. Extended or Super Van i think its called. Does anyone know what size fuel tank this big 'ol ship has in it? It has the 4.2 V-6.

Typically the vans have a 35 gallon tank. Let it get as close to Empty as possible, and fill'er up. Then you'll know.

Ive filled it up several times now since i bought it and it does have a 35 gallon tank.