Truck is a 2018 4WD dually Aisin with a grand total of 33k.
In March, 2021 the dealer replaced a part "Actuator-Axle Locker" under warranty. Truck had 22,100 miles at that time. The 4WD feature was never really used from March, 2021 until March, 2023. I did engage it a couple times and drove...