How to PROPERLY Replace Differential Fluid (gear oil)

Summary by Krater

This video demonstrates how to change differential fluid on a vehicle using common hand tools, including draining the old fluid, removing and cleaning the differential cover, applying a new gasket with coating, reinstalling the cover, and pumping in fresh gear oil.

From the video

Answers: How do I change the differential fluid on my car or truck?

• Differential fluid change
• Differential cover removal
• Gasket replacement
• Gear oil replacement

What it concludes

• Change the gear oil every 50,000 miles or 25,000 miles if you tow a lot to avoid wearing out bearings and gears.
• Always remove the fill plug before draining the differential fluid.
• Leave one top bolt in place when removing the cover to prevent it from falling off.
• Use a plastic razor to scrape old gasket material without damaging the mating surface.
• Apply cut gasket coating to the gasket to help it seal and prevent leaks.