Our '98 American Dream has essentially the same chassis configuration, so like Ron, the chuck is in the compartment on the driver side at the very front. I had to change the female chuck becasue the default factory chuck was for an industrial hose fitting.
That hose fitting will provide you with dry air, a much better quality of air for your tires, especially if you use Equal powder for balancing.
I can get mine up to 110lbs but it takes a couple of minutes of holding the hose on the tire valve.