Same as a KE70, the Altezza manual runs a 4.1, the auto a 4.3.
Found the page I was after... Here's a comparison of the K, T W & J160 boxes, and the 'close-ratio' 5 speed from the Datsun Z series. You'll see the J160 has a lot more gears crammed into the same ratio space, with 5th as 1:1 like most gearboxes 4th. It just great if you're working your way though the tight & twistys, but not noticeable if you're on straighter roads.
J160 6th gear is 0.87, the same as a K50 5th, so definitely not a tall gearbox.