Description

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.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 OEMPre 1993 T-5 Aftermarket1996-1998 Cobra T-45 OEMAll Tremec TransmissionsManual Transmissions with 8 Tooth Drive Gear 1990-1995 T-5 OEM1996-1998 T-45 OEM Except CobraAutomatic Transmissions with 7 Tooth Drive Gear 1983-1989 Automatic TransmissionsAutomatic Transmissions with 8 Tooth Drive Gear 1990-1998 Automatic TransmissionsProduct BenefitsAllows speedo to work with changed differential gearsEasy to install