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Unlike other problems I've heard, My speedometer seems to be 10 to 15 mph faster than I'm actually going according to my GPS. Can anyone tell me what the problem may be? I suspect that the gears have been changed but to what gears I'm not sure.
 

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does it got stock gears in it?
 

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Mine was the same way when I bought it. I ended up finding out that the previous owner had installed 3.73 gears and didn't calibrate the speedometer.

Gear Ratio Calc
 
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