Which 3" tailpipes?

you should have no problem putting 255 60 15's in there with the right offset you should be able get 275 60 15 in there without moving anything .
I have 15x8 with 4.5 bs and with 245 60 15 I could not put tip of pinkie finger between wheel lip and tire. I have a second housing we narrowed to 51 5/16 I will use. The new problem becomes spring clearance, the 1/2" gain on each side will help a bunch. TTI told me I could not use my 3" tail pipes if I did this.