You need to look at the payload sticker on your truck, rather than the brochure number.
Your truck will be borderline for payload, with loaded pin weight of that FW, and family/gear in the truck. Using Old-Biscuits example, you should be under RAWR/tire ratings (most important), towing that FW, especially if not loading it to full GVWR.
The scales will tell the final numbers, but unfortunately it is hard to know the FW loaded pin wt until after the purchase. JMO, but I think this FW will work for you, especially if not loaded to 15,500 GVWR.
Jerry