Ford Mustangs have been a staple of American car manufacturing for many decades, and they are beloved by their owners. Many of these owners are do-it-yourself types who would prefer to tackle smaller problems on their own rather than pay hundreds of dollars to a mechanic. One of these problems is a malfunctioning odometer, which occurs when the odometer gear is old and worn down, causing it to slip and work sporadically.
Remove the screws on the panel underneath the driver side dash, using a Phillips head screwdriver.
Remove the screws on the inside of the instrument cluster.
Remove the instrument cluster while providing some slack from the cables underneath the driver side dash.
Gently pry out the speedometer, using a flat-head screwdriver covered with a soft cloth.
Gently pull up on the trip meter reset button and the center of the speedometer needle to remove them.
Unscrew the two screws on the speedometer face, using a Phillips head screwdriver.
Pull off the circuit board and the motor on the back of the speedometer with your hands.
Remove the small plastic gear inside the motor housing and replace it with the new one.
Reattach the circuit board and motor and secure them in place by screwing in the two screws on the face of the speedometer.
Push the speedometer needle and trip reset button back into place.
Place the speedometer back into the instrument panel.
Place the instrument panel back into the instrument housing on your dashboard and screw it into place with the screws you removed in Step 2.
Place the panel you removed in Step 1 back under the driver's side dash and screw it into place.
