I just swapped the stock 2.73 diff gear for a 3.42 and a Yank 3200 TC in my '02 coupe A4 Corvette. I downloaded the original tune to save it as the original and then upgrade a copy with the new gear ratio. When I check in the Speedo Calibration section, it shows the ratio as already being 3.42 instead of the factory 2.73 that was originally in it.
Is there somewhere else I should be changing the rear gear ratio to adjust the shift points, etc?
TIA