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2001 GMC Sierra Speedometer Calibrators

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Hypertech Speedometer Calibrator Reviews


07 chevy 2500hd

Reviewed By John P (West Hartford, CT) Reviewed for a 2011 GMC Sierra —6/14/2011 4:47 AM

bought this for my new body 07 Chevy 2500hd and it couldn't have been any easier to use.. i only put 33" tires on it but it made a transmission noise when downshifting under throttle. this went on for months before i bought this calibrator. the very first drive after 5 minutes of calibration the noise was gone and the speedometer was back to normal. great product!

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