KM145 & KM146 5 Speed 4WD Transmission Rebuild kit found in Bronco IIs and Rangers BK151 You can identify this transmission by its 12 bolt tin bottom pan (Bronco II) or 12 bolt steel bottom pan (Ranger) and it does NOT use a synchro ring in reverse. This transmission rebuild kit will work for the following 5 Speed, Four Wheel Drive Applications: Bronco II (Compact) 4 Cylinder 2.0L 1985-87 Bronco II (Compact) 6 Cylinder 2.8L 1985 Bronco II (Compact) 6 Cylinder 2.9L 1986-87 Ranger 4 Cylinder 2.0L 1985-87 Ranger 4 Cylinder 2.3L 1985-87 Ranger 6 Cylinder 2.8L 1985-87 Ranger 6 Cylinder 2.9L 1985-87 This kit comes with all new bearings, seals, and gaskets