Thanks for the compliment on the truck.
I just have the Bilstein 5100 shocks set at 2.1 in the front.
The wheels are Fuel Hostage with a zero offset. I did not use any spacers or extensions. The tires are Nitto Trail Grappler 295/65/R20. They rub slightly when in full turn or hard acceleration in reverse. but its barley noticeable. The Bilsteins @ 2.8 should eliminated this issue. I wanted them to stick out an inch because im contemplating the OEM 2500 Flares and they would be flush if i installed them, but if i dont go with Flares, then the truck wouldn't look too red neckish I have noticed that with them sticking out a bit, i have a couple rock chips on my rear bumper so i might just get the mud flaps installed.