Yes axle is different. Ours is a 2019 cab chassis cut away SRW. Winnebago uses the 2021/22 model. Because of the SRW, we have around 500lb less GVWR.
Just drove over the scale the other day: (fully loaded with bikes, 30 gallons/100liters water, food, 3 people)
Front: 1700kg/3750lb
Rear...