Good point
Maximum Payload Weight Ratings.
F250 SWR 4x4 158.0" WB SuperCab
Max GVWR 9,900lbs (standard), Payload 3,250lbs
Max GVWR 10,000lbs (optional),Payload 3,350lbs
F350 SWR 4x4 158.0"WB SuperCab
Max GVWR 9,900lbs (standard), Payload 3,240lbs
Max GVWR 10,000lbs (optional),Payload 3,310lbs
Now in all fairness the F350 has much wider optional choices
GVWR 10,700lbs to 11,000lbs - Payload 4,010lbs to 4,240lbs
GVWR 11,200lbs to 11,500lbs - Payload 3,700lbs to 4,000lbs
But comparing apples to apples @ 9,900lbs GVWR
F250 3,250lbs vs. F350 3,240lbs.
Go figure.... I surely don't understand it.