i have 33s on my jeep and its a 2.5
on the hwy, i rarely go into 5th.
they are fine for city driving and trail riding, just hwy driving is not the best.
i wont go bigger than 33s with this motor.
i also had mickey thompson baja claws, they were an ok tire, lots of road noise and vibration. when i siped them the direction of the tread, they became an amazing tire, especially in the winter.