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4wd actuator
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  1. Duramax Fourth Generation: 2007.5-2010 (LMM)
    I have a small gear oil leak coming from what I believe is the front diff (I'm not super familiar with IFS), it appears to be coming out of a sensor or something on the side of the diff and I'm having trouble identifying exactly what this is. Any ideas? Is it hard to replace and how long can I...
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