Speedometer Mismatch

[Just Schmidtin]

Has anyone else experienced a mismatch in MPH reading between their digital speedometer and the mechanical speedometer? My mechanical speedometer typically reads 2 MPH faster than the digital.
My concern is, if the mechanical speedometer is reading at a faster rate of speed is the mileage recorded on the odometer artificially inflated.
I have a Rubicon JT with stock wheels and tires.

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[Jeepers!]

This was (is?) happening on JLs too. Your dealer should be able to fix it by flashing it. It's weird because the "analog" speedo is also digital.