Short or long

So I had a shortbed crewcab, and I went to a longbed extended cab, which are the same length. but the one thing no one has said yet is: (at least in my old Chev) the short bed had a 26 gallon gas tank and the long bed has a 35 gallon tank. Big thing for me, my friends that I camp with had a long bed and I always had to fill up before he did.

Mike