Originally Posted by Kane

Totally agree. The set mdaniels recommends is perfect to maintain the 18/19 staggered look, and vouch that the 30 aspect ratio in the rear will look odd. Been there, done that ... they simply do not fill out the wheel well with respect and in proportion to the 40's up front.

Note that 235/40R18 and 285/35R19 is the absolute largest tire combination to be safely installed on OEM rims, sans fooling around with spacers. Any fatter up front and the tire will conflict with the control arm nut. Ouch. And it is not recommended that a rear tire wider than 285 be mounted on the OEM width rim. Even 285 is a bit of a stretch, so you may want to settle on 275.

Good luck and enjoy the ride.