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View Full Version : Calibrate Speedometer


stangjr
Mon, August 4th, 2025, 02:54 PM
Trying to calibrate my speedo for the new tires and im not sure its doing anything. I adjusted the revs per mile to what the new tires are and my GPS is still showing 4-5 mph higher than speedometer. Original tires revs per mile was 649 i think and my new tires are 579...
Any advice would be much appreciated.