i'm new to this my father inlaw gave me duratraxx mt. I was wondering can i get a bigger fuel tank.

There was no other tank meant to fit on that chassis. In fact, the original is no longer available and highly sought after. You could get another tank to work on that with some modification. If the original tank is still good, someone will buy it from you.

If you need a new tank let me know I have a bunch of new in package parts for the mt.When they discontinued the truck I started hording parts for the truck.lmk if you need anything.