Here is a VIN Decoder for Ford vehicles -
VIN Decoder - Ford Truck Enthusiasts Forums
I entered your VIN number and got this result.
Ford Truck VIN Decoder - Decode your vehicle identification number
www.ford-trucks.com
Here is the deets on towing - I think you get limited by tongue weight. TBH I am not sure how to read each number but...
5321 - Base weight before people, gas and any WD hitch you add. 4 pax @ 175 (700#) + 20 gallons of gas at 6#/gal (120#) WD hitch 300# + 200 miscellaneous =
6700 = Rolling weight subtracted from GVWR of 7850 max (?) =
1350# Available payload for trailer tongue weight + 6700 =
8050 All in Vehicle weight - Over weight (GVWR max 7850#) because of tongue weight.
So your max tongue weight can only be 1150# (minus 200#)
1150 / 12% = 9583 Max trailer weight and if you want a better tow 1150 / 15% = 7666#
This is also totally at capacity pulling a trailer with a ton of air resistance.
For reference my Dodge 1500 Classic ends up with a trailer weight rating of about 8500#
View attachment 151547