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    LML 2012 4x4 issue/question

    4x4 issues I also have a 2011 duramax with the same issues. When I put it in 4 hi and let off you can here a ticking sound, until you step on the gas again. I'm just not sold on the fact whether or not this is normal. Dealer just changed gears in my front diff thinking it was that but it didn't...