re-gear

Background: 2020 JLUR with 3.6 and have been running 5.13s and 37” tires for almost 6K miles. Previously was using the Flashcal with tires calibrated to 35” (that’s the measured/rolling diameter not paper spec) and the appropriate gear ratio. Used a downloaded app on my iPhone to confirm...

My lockers will not engage after going from 4.10 to 4.88. On 20% of the start ups, "service axle locker system" message pops up. This error message will clear upon shutting down the engine and restarting. When I go to 4 low and engage either rear or front plus rear lockers, the locker icon on...