exact same size sidewall, just the 335's are wider obviously)
i've been running 275/40's and 245/45's for a couple years.... creates obvious wear problems, but there's nothing you can do since you can't rotate them (center of tread on back is wearing thin, and the outside edges of the front are low too)
That's not because of the tire size. Your fronts are under inflated and your rears are over inflated.
I ran the 245/275 combo for a while with no issues. Now I'm running 275/315. In the tire size 245/45/17 the middle number is the sidewall height compared to the tire width in percentage. The sidewall is 45% of the tire width. That's why when you get into wider tires, like the 315s, the sidewall number goes down, but it's still the same height.