jp360cj

Here's a copy of the 2015 Towing Guide. Tow rating is based off the GCWR. To find the GCWR, you need the cab config, bed length (or wheelbase), engine, gear ratio, 4x4 or 4x2, and you'll need to know a little bit about the truck (for example, does it have tow package, max tow, & in some cases the wheel size).

A 2015 Supercab, 145" wheelbase (6.5' bed), 4x4 with 3.5EB & 3.55 gears has a 16,000# GCWR. This is the max combined for the truck, trailer, and anything in them. The stated tow rating GCWR - curb weight (probably of the lightest truck you can get with those specs) and is 10,700#. If you want a best case scenario max tow rating, take the GVWR (7050 per the window sticker) and subtract the payload capacity per the yellow sticker on the doorjam, then subtract the weight of your family. For Example, if the payload sticker says 1800#, then 7050 - 1800 = 5250# truck weight. 16,000 - 5250 = 10,750#, but that's even including a driver. Say you & your family weigh 500# combined and another 100# for the WDH you'll need, & you're down to a 10,150# trailer. So, In this example, the trailer weight limit due to GCWR is 10,150#, but you also have to look at your available payload, RAWR, and hitch capacity.

Looking at the payload, you started with 1800# payload, and we need to the 600# for family & WDH like we did earlier. That leaves you with 1200# of available capacity for tongue weight. Estimating 13% tongue weight, divide 1200# / 0.13 and you get 9,230# of trailer that you can support with the remaining payload capacity.

***Keep in mind, the payload capacity of 1800# in this example is completely made up by me. I have NO idea what the actually payload might be on that truck. I'm simply showing you how to do the calculations.**

https://www.fleet.ford.com/resources...Tgde_May19.pdf

Ricktwuhk

No, there isn't. There is nothing you can determine from the window sticker that is useful.

As I said, you should read threads.

Payload minus any mods made to the truck (used truck will need to be weighed) minus weight of all passengers and their cargo minus 100 pounds for a weight distribution hitch = remaining payload. Divide remaining payload by .13 for the max LOADED trailer you can tow.

The Beatles

I think what jp360cj is trying to say is, go ahead and load up a 10k trailer and if you have any issues, he will take care of it. (as many times as i've seen the calcuations done, i appreciate them each time. Helps drill them into me. Thanks!)

jp360cj

smokeywren

Ford publishes what they call a tow rating. It's the same as towing capacity for a truck with no options not required to achieve the GCWR on which the tow rating is based. And no weight in the truck except a skinny driver and a full tank of gas. The tow rating is not on the window sticker, but there is enough info on the sticker that you can determine the approximate tow rating by using the chart in the Owner's Guide, or by downloading and using the 2015 Ford RV and Trailer Towing Guide.

Using the chart in the tow guide, you have
SuperCab 4x4 145" wheelbase
3.5L EcoBoost engine
3.55 axle ratio
trailer tow pkg

So with a weight distributing hitch, your tow rating (Maximum Loaded Trailer Weight in pounds) is either 10,700 or 11,800. You'll probably have to rely on the chart in the Owner's Guide to pin down the exact tow rating. My guess is that the higher tow rating requires the max tow pkg. But it doesn't matter, because you cannot achieve a trailer weight of even 10,700 without exceeding some other weight limit, probably GVWR, of an F-150.

Payload rating is GVWR minus the curb weight of the truck when it exited the assembly line. The payload is on the yellow sticker in the door jamb near the Federal Certification Label . The Federal Certification Label is the one in the door jamb that includes VIN, GVWR, GAWRs, tire size and PSI, and several codes including paint code, axle code, etc. You cannot determine the payload without knowing the unloaded curb weight. If you cannot look at the yellow sticker on the truck to determine payload, then you can estimate the curb weight by subtracting tow rating from GCWR, using the same chart you used to determine tow rating.

Your tow rating is either 10,700 or 11,800. If your tow rating is 10,700 then your GCWR is 16,000. 16,000 minus 10,700 = 5,300 pounds. If your tow rating is 11,800, then your GCWR is 17,100. 17,100 minus 11,800 = 5,300. So Ford thinks your curb weight is 5,300.

Your GVWR is 7,050, minus 5,300 curb weight = 1,750 pounds payload.