Gas tank meaurement
 

Hey gang! I was wondering if someone could be so kind as to take a measurement for me? I need the measurement of the bolt holes that mount the gas tank to the back of the cab, to the bolt hole that mounts the bottom of the gas tank to the floor. I am putting in a complete floor pan and need to know those measurements so I can place the back of the floor. My tank is some distance from me, so I don't have it handy. Ideally it would be nice just to bolt the tank in to place the rear of the floor, but the bracing is preventing that.
Thanks.