I'm pretty sure you can fit 35's on the Sequoia. The only reason the OP went with 33's is bc he wanted to be able to fit a full size tire in the spare location under the rear.
That is correct. I wanted to be conservative with tire sizing. My goal was to be able to fit a full size spare in the well. Assuming I got a flat out in the middle of nowhere, I would probably need a comparable size, strength tire to get me back out. Also, my gas mileage has already taken a huge dump. I think I average city/hwy around 11.5mpg. That said, the front end is the same as the Tundra. Whatever you see being done on the Tundra will most likely work with the Sequoia. The rear though different from the Tundra has a ton of room.
Below are pics of the clearance turning the tires full left/right.
Picture of drivers tire turned full left inside rear. Plenty of clearance to the frame.
Picture of drivers tire turned full left outside rear (mud flap). 1" of clearance
Picture of drivers tire turned full right inside front (sway bar). Plenty of clearance.
Picture of passenger tire turned full left inside front (sway bar). Plenty of clearance.
Picture of passenger tire turned full right inside rear (frame). Plenty of clearance.
Picture of passenger tire turned full right outside rear (mud flap)