Mazda M5OD transmission

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The M5OD (Mazda 5-speed with Over Drive) is a line of manual transmissions produced by Mazda and used in Mazda and Ford cars and trucks. Two variants, light-duty R1 and medium duty R2, are made. R1 transmissions are/were used in the Ford Ranger, Explorer, Aerostar, and Bronco II. R2 versions are/were used in the F-150, Econoline Van, full size Bronco, and the Cougar/Thunderbird with the supercharged V6.

The M5OD is fully synchronized on all gears, including reverse. The synchronized reverse gear was one of the main features of the new units, to protect internal components from being damaged by inadvertent operation by the customer, and was protected by US Patent 4,757,726. The transmission has an integral bellhousing, making the power plant stiffness high enough to avoid harmful resonance. The transmission uses a hydraulic clutch setup and has an internal slave cylinder.





  • 1988-1996 Ford F-150 (4.9 L {300 ci} inline-6 engine and 5.0L 302 ci)
  • 1988-1996 Bronco (4.9 L {300 ci} inline-6 and 5.0 L {302 ci} V8 engine)
  • 1989-1995 Ford Thunderbird Super Coupe (3.8 L OHV V6 Supercharged engine)
  • 1989-1990 Mercury Cougar XR-7 (3.8 L OHV V6 Supercharged engine)
  • 1997-present Ford F-150 4.2 L V-6 & 4.6 L V-8 engine
  • 2006-present Ford Ranger/Mazda BT-50 (2.5/3.0 L inline-4 Commonrail turbocharged Diesel engine)
  • 2007-present Ford Everest (2.5/3.0 L inline-4 Commonrail turbocharged Diesel engine)