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The GMC Sierra 2004 back differential requires 2 quarts of oil. It's important to change this part eventually to avoid accidents on the road. To prevent crashes, it's advisable to replace your tires every 30,000 to 50,000 miles and ensure they are in good condition. At some point, you may encounter issues with this component such as cupping or feathering problems, which can lead to premature tire wear. Regularly check your tire pressure every month and inspect for any holes that could result from running over sharp objects. Additionally, keep an eye on the part to ensure it doesn't become loose over time.
I believe it requires three quarts, not two.
The rear differential of the 2004 GMC Sierra requires three quarts of differential fluid for proper maintenance.