Originally Posted by jchammond

27" diameter tires put your speedometer accurate & fill the wheel wells;
If you have a particular tire brand/model in mind-that would help,as they all differ somewhat on fitment.
TireRack perform's a measurement on a suggested wheel width size & then gives you a range...The 265/305 in 35/30's are 27.3"/27.2" tall in a Michelin & the same 265/305 in 30/25's are 26.3"/26.0" tall (slightly more negative rake)...both of these tires were measured on a 9.5/11.0" wheel.
In Michelin; A 255/35,295/30 are both 27.0" tall & measured on a 9/10.5" wheel.
So you get to choose on what you like.....w/4.08 gearing out back;i'd personally stay with the taller-closer to oem diameter rubber.
Hope this help's,as i run 26.8"F/27.2"R on mine w/19" wheels.......it's all in what you like/as with oem camber & your wheel spec's-you should not poke.