Your truck should handle it fine. I have the same camper in a 1997 f250. According to our post you have weighted the truck. If your weight of the truck with you and a full tank of gas in it is 5460lbs then you have 3340lbs of payload available till you are over the gvwr.
I weight out at around 6000lbs depending on fuel load and I have a vanguard 96t which is 9.6 feet. I have not weighed it. I have seen a couple times on the internet that these campers weigh about 2000lbs. I would take that with a grain of salt. When I load the camper, the rear springs only sag about 1 inch.
Most people on here think of new campers. A new camper in the 9 foot range would be way too heavy for our trucks. Also our trucks are a lot lighter then a more modern truck as well.