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bigger tires speedo correction
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Speedometer calibration
Well, two dealers and two local garages cannot calibrate the speedometer. Since I increased tire size to 275 60-R20 my speedometer reads approximately 3 mph faster than stated on speedometer. Actually 2,270 mph. Anyhow nobody seems to be able to adjust for tire size. One Ram dealers tech said a...- Twoamen
- Thread
- bigger tires speedo correction hypertech speed correction speedo calibration speedometer calibration speedometer correction
- Replies: 220
- Forum: 5th Gen General Discussion