Not to difficult to do if you have some help. A few things you will need. A torx E-12 socket, pilot bearing puller (rent at any parts store) and a good set of tools. There are some youtube video's that show the major points.
1998 4.0 5 speed, Superior super 35 rear, Superior super 30 front, Yukon air lockers x2. 3" Terra Flex suspension lift, 1.25" BL, 1" MML War 8K winch, Dick Cepeck Radial F-C 33/12.5/15.