To any of the more automotive inclined people:
If you have a vehicle with 4x4 how much of a difference in tone do you hear between driving in RWD vs 4x4 from the drivetrain?
I’ve never noticed this slight hum my truck makes before in 4x4. It has 115k on it and both differentials have been serviced in the last year, makes me worried it’s a bigger issue. I have had an outboard bearing seize on my front passenger side last year and it’s since been repaired.
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