Wow, someone dug up this old thread?
In the end, things lined up and I decided on going ahead with the 255's.
Have been riding that combo now for almost 10 months.
As for the lift, I got a great deal on Wil's old setup. Eventually I will upgrade, but it has suited me well so far. And, he commented earlier in the thread that he had no rubbing issues for the rear tires. I have his old lift, and pleased to report that the same is true for me.
I would defiinitely include myself as a member of the 255 fan club. While I did see a drop in mileage, I think the size suits the truck very well, funcionally as well as aesthetically.
My only regret is one merely aesthetic. I went with 16x7 Cragar Soft 8's and wish I had gone with 16x8's...as while I don't want the tires sticking out past the flares, right now they are a bit too tucked in for my tastes. Oh well, it works great off road.
For tires, I went with Maxxis Bighorns. I have only good things to say about them. Except for noise....they are your typical loud mud tire. I got used to it.