The Rock Krawler 7 Up Suspension System includes all of the parts you see here. You'll also need to get your hands on a custom front crossover exhaust pipe (for gasoline models), a rear CV driveshaft or heavy-duty slip-yoke eliminator kit with CV driveshaft, a longer front driveshaft, and a TJ Wrangler rear antiroll-bar assembly. Two 7 Up kits are available. One is for '02 through early '04 models and the other is for late '04 through '05 models. The differences between the two kits are minuscule, though important, because Jeep changed the transfer case/transmission crossmember during the '04 model year.