Trans speedo gear number 904

Mopar Speedo Gear Chart : Drivin' It Home

Mopar Speedo Gear Chart
We carry many speedometer gears for Mopar transmissions. To determine what gear you need, use the table below. Our part #’s for mopar speedometer gears are FD0xx where xx is the tooth count of the gear.

At 60MPH, 1 tooth = 2 – 3mph.

More teeth slow the speedometer down, less teeth raise the the speedometer. Gears with 25 teeth or less require a different speedometer adapter.

Tooth count table is accurate to within 5MPH.