3.73s to 3.31s

[Jrt]

Then your tuner is a moron. The speedo gets its information from the BCM. The fact he doesn't know this would scare the shit out of me. Do a search.
Changing rear gear from 3.73 to 3.31 speedometer recalibration question

It john lund ..from lund racing

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[CobraBob]

Even Lund Racing isn't perfect.

 

[Jrt]

Even Lund Racing isn't perfect.

I agree but that's the second big tuner that's told me that ..even VMP said the same..but I had a couple smaller tuner shops say I have to ask idk

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