Jeep NP247 Transfer Case Gasket & Seal Kit 1998-ON This transfer case seal kit has everything you need to seal up your transfer case includes all the seals, O-rings, and adapter gasket. Keep your oil in your transfer case and replace all the seals. If you are looking for a whole rebuild kit with all the bearings please check out our store, we sell a rebuild kit that includes all the parts in this seal kit as well as all the bearings that go in your transfer case.