Speedometer Recalibration Gears
Once you change the gears in your differential, you need a new speedometer gear to recalibrate your speedometer. They're inexpensive, and only take a few minutes to change.
These Recalibration Gears fit 1979-1998 Mustangs. Please check our Hot New Product Section for information on 1999 and 2002 Mustangs.
Instructions: Note transmission type, model and resulting drive gear. Cross reference with your rear-end gear ratio to find the correct "recalibration" gear for your application.
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
2.73 Gear Ratio / Maroon 16 Speedo Gear $9.95
3.08 Gear Ratio / Yellow 18 Speedo Gear $9.95
3.27 Gear Ratio / Pink 19 Speedo Gear $9.95
3.55 Gear Ratio / Black 20 Speedo Gear $9.95
3.73 Gear Ratio / Red 21 Speedo Gear $9.95
4.10 Gear Ratio / White 23 Speedo Gear $15.95
Manual Transmissions with 8 Tooth Drive Gear
1990-1995 T-5 OEM
1996-1998 T-45 OEM Except Cobra 2.73 Gear Ratio / Yellow 18 Speedo Gear $9.95
3.08 Gear Ratio / Black 20 Speedo Gear $9.95
3.27 Gear Ratio / Red 21 Speedo Gear $9.95
3.55 Gear Ratio / White 23 Speedo Gear $15.95
3.73 Gear Ratio / White 23 Speedo Gear $15.95
4.10 Gear Ratio / White 23 Speedo Gear $15.95
Automatic Transmissions with 7 Tooth Drive Gear
1983-1989 Automatic Transmissions
2.73 Gear Ratio / Blue 16 Speedo Gear $9.95
3.08 Gear Ratio / Gray 18 Speedo Gear $9.95
3.27 Gear Ratio / Tan 19 Speedo Gear $9.95
3.55 Gear Ratio / Orange 20 Speedo Gear $9.95
3.73 Gear Ratio / Purple 21 Speedo Gear $9.95
4.10 Gear Ratio / White 23 Speedo Gear $15.95
Automatic Transmissions with 8 Tooth Drive Gear
1990-1998 Automatic Transmissions 2.73 Gear Ratio / Gray 18 Speedo Gear $9.95
3.08 Gear Ratio / Orange 20 Speedo Gear $9.95
3.27 Gear Ratio / Purple 21 Speedo Gear $9.95
3.55 Gear Ratio / White 23 Speedo Gear $15.95
3.73 Gear Ratio / White 23 Speedo Gear $15.95
4.10 Gear Ratio / White 23 Speedo Gear $15.95