1999-2013 Silverado: 4X4 Repair

If you're having 4x4 engagement/disengagement issues, a "Service 4 Wheel Drive" message, or getting diagnostic trouble codes C0378 or C0379, there's a good chance the front axle 4X4 actuator is to blame. The repair process is the same across several GM 4WD products, including: Sierra, Silverado, Escalade, Suburban, Yukon, Tahoe, Avalanche, Colorado, and Denali. The actuators differ slightly in part number, but the method is the same across many years (1999-2014). Visit https://www.masterjacks.com/videos/19... for links to parts & tools on Amazon. Amazon Affiliate Links 4x4 Actuator https://amzn.to/405OpT4 Thread Tape https://amzn.to/3yTgVuY 75W-90 Gear Oil https://amzn.to/3LIxotP Support the channel, buy Merch https://masterjacks.myspreadshop.com/ CHAPTERS 0:00 Symptoms 0:11 Actuator Removal 0:33 Thread Tape 0:50 Installation 1:02 Ops Check