So the simple way to calculate payload capacity is GVWR - Curb Weight.
Going by the specs on my 2005 F150 Lariat 4x4, this means I should have
a theoretical payload capacity of 7200lbs - 5577lbs. = 1623lbs.
However, there's a "loading" sticker which specifies a maximum weight
of passengers + cargo at 1288lbs. Is this a physical limitation of the
axle? tires? Why the discrepency?