I kind of figured the 1424 was the factory number even though it was on the tire sticker. The chart MADDOG directed me to shows it should be 1780 pounds. Am I to assume the other numbers posted for my truck aren’t really accurate and not to go by them? Do I have a 11250 pound towing capacity and 17000 combined? Are these numbers correct? Seems impossible that they are correct in the real world towing.
The numbers in the chart are for a tradesman in that configuration.
The door jamb is your payload.
Take the 7100 minus your 1424 and that gives you the base weight of your truck.
This means your truck with full fluids and no passengers and cargo weighs 5676.
The axle weights combined weigh more than the gross because the axles are more capable than the brakes on the truck.
7100 is what you can load your truck too and expect your brakes and steering to work as designed.
You can load an axle to the 3900 front and 4100rear...but your braking and steering will be affected.
Again...the chart is not an accurate representation of a specific truck. It is the confirmed numbers for that configuration in a tradesman trim.
Once you add the components of the trim you get to where you are...with the 1424 payload.
With RamBox and MFT we have seen payloads down to 900lbs.