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Application. This Genuine Ford 7 Tooth Speedometer Drive Gear is for use with 1983 to 1998 Mustangs equipped with a T5 transmission and is a direct fit replacement for the 1983-1989 factory gear.
Speedometer Chart | |||
Axle Ratio | 6 Tooth Drive Gear | 7 Tooth Drive Gear | 8 Tooth Drive Gear |
2.73 | - | 16 | 18 |
3.08 | - | 18 | 20 |
3.27 | 16 | 19 | 21 |
3.55 | 17 | 20 | 23 |
3.73 | 18 | 21 | - |
4.10 | 20 | 23 | - |
4.30 | 21 | - | - |
4.56 | 23 | - | - |
Transmission | 16T | 17T | 18T | 19T | 20T | 21T |
Manual | Wine | White | Yellow | Pink | Black | Red |
Automatic | Blue | Green | Gray | Tan | Orange | Purple |
Manual Transmissions with 7 Tooth Drive Gear
- 1983-1989 T-5 OEM
- Pre 1993 T-5 Aftermarket
- 1996-1998 Cobra T-45 OEM
- All Tremec Transmissions
Manual Transmissions with 8 Tooth Drive Gear
- 1990-1995 T-5 OEM
- 1996-1998 T-45 OEM Except Cobra
Automatic Transmissions with 7 Tooth Drive Gear
- 1983-1989 Automatic Transmissions
Automatic Transmissions with 8 Tooth Drive Gear
- 1990-1998 Automatic Transmissions
Mustang Fitment: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998 Details >>