Have a 2016 F250 SRW 4x4 CC - Looking at the GAWR and Payload numbers on the Ford spec site vs what is on the door and what is shown on the spec sheet for the F350. Tried looking up the part numbers and the ones shown for the a axle and springs for the F250 and F350 are the same. But, on the door panel of my F250 the rear axle for my truck is listed as 6100 lbs, but the spec sheet shows 6290 and the F350 spec sheet shows 7180, but the part numbers are the same. Also, the payload on the door is 1919 lbs, but the F250 spec sheet shows 3200 and the F350 spec sheet show 3560 - 4260 lbs, again the same part number for the rear springs. So, I am confused as to how the same part numbers on the F250 vs F350 can give you such different payloads. And, how the same axle on the F250 and F350 can provide such different GAWR numbers. I this nothing more than the advertised GVWR is different for the two trucks and they adjust the door numbers to the advertised GVWR even though they are the same parts/truck???