Vehicle storage tank mounting assembly

A mounting assembly for an elliptical storage tank, comprising:

• A pair of substantially U-shaped longitudinal support structures spaced apart and each U-shaped longitudinal structure having an inner side wall, an outer side wall, and a lower wall between said side walls at a first end, wherein said inner and outer side walls of said U-shaped longitudinal support structures are secured to a curved bottom wall of said tank at a second end, and wherein said outer side wall of said U-shaped longitudinal support structures is longer than said inner side wall to abut said tank;
• a pair of angled reinforcement members with a first angled portion attached to said inner walls of each said U-shaped longitudinal support structures and a second angled portion contacting said respective lower wall;
• two or more generally rectangular cross bracket structures secured between said U-shaped longitudinal support structures;
• a sub-frame for supporting said U-shaped longitudinal support structure, wherein said sub-frame is secured to said cross bracket structures;
• and
• a pair of longitudinal chassis rails having mounting brackets for securing said chassis rails to said sub-frame.