2014 Challenger R/T 5.7l w/5A Nag1. We swapped the rear gears from 3.06 to 3.91, made the gear ratio change using the VCM Scanner, after that found that all the changes we made to the TCM are reverted back to stock settings, even if we flash the TCM again with our changes it doesn't stick. Is this expected behavior or did we miss some changes?
Thanks,
-Kenny