How do you recalibrate the speedometer on a 94 ford bronco?

To recalibrate the speedometer on a 1994 Ford Bronco, first, determine the correct gear ratio based on your tire size and rear differential. You may need to replace the speedometer gear located in the transmission, which is color-coded for different ratiOS. After installing the correct gear, drive the vehicle at a known speed (using GPS or mile markers) to verify accuracy, adjusting as necessary. If needed, consult a service manual for specific instructions related to your Bronco's configuration.