Hi everyone , I'm a retired guy that like power under the hood and have lots of grand kids ( 17 ) that love it to . Where building a 2004 4x4 Dodge Cummings , smarty chip , 6" exhaust , cold air , BD injectors , locker front and rear with 4-10 gears , special u joint all around , getting ready to build drive line loops and looking for info on tires I should be using and any info on even where to go pull . I live 50 miles from Reno . Hope to hear from you guys and thanks .