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How to Change Rear Differential Fluid 02-05 Mercury Mountaineer

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How to Change Rear Differential Fluid 02-05 Mercury Mountaineer

Created on: 2014-10-26

If the rear differential needs fluid, watch this video and learn how to add more

  1. step 1 :Draining the Differential Fluid
    • Place a drip pan underneath the differential case
    • Remove the drain plug with a 3/4" ratchet
    • Let the fluid drain
    • Place RTV around the drain plug
    • Twist and tighten the drain plug in place
  2. step 2 :Refilling the Differential Fluid
    • Remove the filler plug with a 3/8" ratchet
    • Insert a piece of hose to the filler hole
    • Insert the fluid into the differential casing until it leaks out the side
    • Twist and tighten the filler plug in place

Tools needed for replacement

  • General Tools

    Drain Pan

  • Materials, Fluids, and Supplies

    RTV

    Rubber Vacuum Hose

  • Ratchets & Related

    3/4 Inch Drive Ratchet

    3/8 Inch Drive Ratchet

Installation Video
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Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks!

In this video, we're going to show you how to change your rear differential fluid on this 2003 Mercury Mountaineer. The items you'll need for this are a 3/4" ratchet, a 3/8" ratchet, a drip pan, a piece of hose, and some RTV.

Your rear differential is located right here. Using a 3/4" ratchet just remove this drain plug, and you may need a piece of pipe for some extra leverage. We'll fast-forward as he removes that the rest of the way. Make sure you have a drip pan underneath it. Once it stops draining, put some RTV around the drain plug. Just wipe it into the threads and then twist your drain plug back into place and tighten it up.

Using a 3/8" ratchet, just remove the filler plug up here. I'll take a piece of hose, put it right in. This allows us to just take our fluid, tip it up and squirt it in. Once you get some dripping out of there pretty good. We'll fast-forward as Mike tightens that up. Then just wipe down the area and you're all set.

We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.

Tools needed for replacement:

    General Tools

  • Drain Pan

  • Materials, Fluids, and Supplies

  • RTV
  • Rubber Vacuum Hose

  • Ratchets & Related

  • 3/4 Inch Drive Ratchet
  • 3/8 Inch Drive Ratchet


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