Anthony J Clayton

Thanks you the MAN this really helps

I recently purchased a 2015 Chevy 3500 with a 6.6 Duramax diesel flat bed. I have two tanks front and rear is there a transfer switch? how much fuel in each tank. The fuel gauge said half full attempted to fill the front tank and it would not take any fuel it was full put 31 gallons in the rear tank and the fuel gauge now reads full. How does this system work?