I am a little confused on what the actual payload of this 2024 F150. On the window sticker, says it has max tow package and payload package, making the GVWR 7100 lbs. The dealer sent me a picture of their invoice that says shipping weight 4874, so that should make the payload ~2226. However, the yellow sticker on the door jamb says 1719. Why would that be less? I thought to get payload you subtract the curb weight from GVWR?