This is a Transmission Rebuild Kit for a Ford Bronco II or Ranger with the 4 Speed TK4 Manual Transmission Part# BK143 You can identify this transmission by its 14 bolt aluminum bottom pan. This kit includes all New Bearings, Seals, and Gaskets. This transmission was found in the following 4 Wheel Drive Bronco II and 4 Wheel Drive or Rear Wheel Drive Ranger applications: Bronco II 4 Cylinder 2.0L 1984 Bronco II 4 Cylinder 2.3L 1984 Bronco II 6 Cylinder 2.8L 1984 Ranger 4 Cylinder 2.0L 1983-84 Ranger 4 Cylinder 2.3L 1983-84 Ranger 6 Cylinder 2.8L 1983-84 .