M5R1 Mazda Ford 5 Spd Transmission 3-4 Synchro Assembly M5R1-2.5 This is a new 3-4 synchro assembly; it will include the Hub & Slider. If you need the synchros for this assembly or anything else for your rebuild please see our store. Will fit: M5R1 Ford Aerostar 1985 - 1995 Ford Explorer 1991 & up Ford Bronco II 1988 - 1990 Ford Ranger 1988 - Up Ford Explorer Sport & Sport Trac 2001 - 2002 Identify this Transmission by Tag's on the side "E87A, E97A, FO7A, F17A " This Transmission has an Aluminum Case and an Aluminum Top Cover. Note it is called M5R1 or M5OD or Mazda Type.