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Ford Performance M-4209ADPTAC

Speed-Dial Speedometer Adjuster 1994-10 Mustang (Automatic & Manual Transmissions)

Ford Performance M-4209ADPTAC

397-M-4209ADPTAC

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Ford Performance M-4209ADPTAC Speed-Dial Speedometer Adjuster 1994-10 Mustang (Automatic & Manual Transmissions) $153.99
Speed-Dial Speedometer Adjuster
  • 1994-10 Mustang (Automatic & Manual Transmissions)

  • Ford Performance M-4209ADPTAC Details

    Specifications:

    Manufacturer's Part Number:
    M-4209ADPT-AC

    Ford Racing Speed Dial Speedometer Adjuster is designed to reset the factory speedometer on 1994-2010 Mustangs. This unit allows you to adjust the signal going to your electronic speedometer to match a ring and pinion gear ratio or tire diamter change by reporgramming. The unit installs with just 4 wires and can be removed if the ratio is changed back in the future. There are limitations on recalibration for some vehicles and some accessories like Cruise Control may be lost with a too large of a step in gear ratios.

    Features
  • Used to correct speedometer because of tire size or gear ratio changes
  • Fits 1994-2004 Mustang manual and automatic transmission
  • Fits 2005-2010 Mustang with manual transmission. Will correct speedometer. It has no limit on percentage of gear ratio change for manual transmission vehicles.
  • Fits 2005-2010 Mustang automatic transmission. Will correct speedometer to a maximum of a 10% gear ratio change
  • The Speed-Dial scales a frequency based vehicle speed signal up/down to maintain accurate vehicle speed indication to the instrument cluster and PCM.
  • Easy 4 wire installation
  • No reprogramming of PCM necessary

    NOTE: To maintain cruise control function on 2005-2010 Mustang automatic and manual transmissions, gear change is limited to equivalent of 5% higher or lower ratio (<+/-5% change). For example, a gear change from 3.55 to 3.73 results in a gear ratio reduction of 4.8% so cruise control will continue to operate normally. A gear ratio change from 3.55 to 4.11 results in a gear ratio reduction of 13.6% so cruise control operation is lost.

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