Call the tech team at Advance Adapters or Novak conversions. They have all the parts you need and are an excellent source of info. I'm going to do the same when my 4.0 dies and I've decided to go with a LS engine. Looking at 6.0 vortec.
4" Teraflex long arm lift. D30 tubed with chromoly axles, high pinion, powertrax no-slip and Warn Lockout Hubs. D35 w/ultimate 35 upgrade OX locker, 4.56 gears. NP231HD, Air on Board, Warn M8000 Winch.