4x4 gear change
#52
Man Motor club
Join Date: Jun 2007
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I was told that a Tech2 cannot recalibrate the speedo, that the dealer needs to contact GM for a custom tune to load to the truck that has been altered for speedo compensation with gears or tires or both. The dealer was supposed to do mine when they installed my tires but Justin verified that it wasn't done when he tuned my truck.
#53
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Join Date: Jun 2008
Location: McAlester, OK
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I was told that a Tech2 cannot recalibrate the speedo, that the dealer needs to contact GM for a custom tune to load to the truck that has been altered for speedo compensation with gears or tires or both. The dealer was supposed to do mine when they installed my tires but Justin verified that it wasn't done when he tuned my truck.