Fivers can have a pin weight as much as 25%... You are looking at close to if not more than 4000 lbs if you ever get fully loaded (it happens)...Here is a chart that can give you a worse case scenario...how much you can pull with your available payload... Subtract everything from the payload of the truck that will be in the truck.. yourself, family, gear.. etc etc etc... then use available payload to see if you can pull the fiver.
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You still have to pay attention to GCVWR and the Trailer Tow Rating..
Thanks and good luck!
Jeremiah