CONGRATULATIONS on the JAYCO!!!
...and WELCOME TO JOF!!! The members here are GREAT!!! There is a lot of GREAT information to be found here. I am sure that you will have information and pictures to share with us... so please do!!
I have no clue as to what size tank they have.. my F150 came with a 26 gallon tank and I think there is an option for a 36 gallon tank. I am sure someone with a Class "C" will fill you in on the details.
Don
My Registry
RVing with SOLAR