Updat to fuel gauge

[shample]

I am installing a 37 gal tank in the bed. Has/does anyone know if the parameter for fuel amount can be changed from 34 gal to 71 gal to make the gauge and the electronis work correctly??

Thanks

shample
08 silver GMC 3500 crew w/5th wheel
as my granddaughter says ""Papa, your truck has training wheels"

[IdahoRob]

I've done it a replacement fuel tanks like supertank and titan, but those use the factory sending unit in the enlarged tanks. Problem you'll have is the sending unit will not move until you are running fuel out of the factory tank.