In this video, I show how I replaced the front differential in this 2011 GMC Yukon. This truck has around 110,000 miles, and had a loud whining noise coming from the front differential when the transmission was set to "auto" mode. Setting it to "2wd" would make the drivetrain whine go away. This problem happened because it was kept in "auto" mode its entire life. If the truck was kept in "2wd" mode instead, the front differential likely would not have worn out. So after this repair, it will be kept in "2wd" and only switched to "auto" when the road conditions deem it necessary.

This procedure is likely very similar for many GMC and Chevy Trucks, Tahoe, Suburban, Denali, Avalanche, Escalade, Silverado and Sierra.

SKIP AHEAD LINKS:
0:00 how to replace a front differential
0:24 Remove the shield
0:40 Drain the front differential fluid
0:56 Remove the 4wd axle actuator connector
1:14 Remove the 6 axle bolt in each axle
1:30 Disconnect the differential breather hose
2:04 Unclip the actuator wiring
3:01 Disconnect the driveshaft
3:30 Remove the frame crossmember
4:14 Remove two passenger side differential nuts
4:22 Remove two driver side differential bolts
4:52 Remove the front differential from the truck
5:43 Install the differential into the truck
6:28 Install the driveshaft
6:43 Install the frame crossmember
7:13 Reconnect the 4wd axle actuator connector
7:22 Reconnect the differential vent hose
7:47 Install the 6 axle bolts in each axle
7:58 Fill the front differential with 75w90 Synthetic fluid (~1.5 1.75 quarts)
9:39 Double check that everything is tight & connected
10:00 Test drive the truck

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Blair Spotweld cutter https://amzn.to/2Q0lz7R
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The video is for your entertainment only. I’m just some idiot on the internet working on crappy cars and trucks. So if you are following any of my video for actual knowledge do so at your own risk.

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Tags:
#GMCYukon
#Chevytrucks
#GMCtrucks

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