'08 sitttin' on 295/70r18 Nitto Terra Grapplers and a Hell Bent Steel 2" leveling kit. Here's a link to some other mods I have done as well...
http://www.cumminsforum.com/forum/07-5-09-3rd-gen-6-7l-performance-parts-discussion/553406-08-deleted.html#post5742629