How To Replace Axle Seal In Your Car

The car has many fluids that should all stay in their proper places. The replacement of an axle seal is similar to the relief of any other seal on your vehicle. Oil on the exterior of the casing where the axles go can sometimes be the only sign of a problem. Following your nose is a reliable way to detect whether the leaking oil is engine or gear oil.

You will learn How To Replace Axle Seal In Your Car in the post below.

Gear Lubricant

Gear oil has a distinct odour and is designed to withstand the grinding and spinning of gears. In a variety of respects, it differs from motor oil. This viscosity aids the oil’s adhesion to the bags as they gnash and spin and provides lubrication under the high-stress conditions associated with gear meshing and occasional mashing or grinding. The gear oil is critical to the transmission, transaxle, differential, or transfer case reaching its ultimate aim – transmitting the engine’s power via the axles and wheels to the ground – and succeeding in doing so.

Axle Seals: How To Replace Them

Axle seal replacement is critical because severe damage, such as saturated brake pads and shoes and brake failure, can cause significant damage to the differential ring and pinion and bearing assemblies, potentially destroying the entire rear axle. Leakage around the seal and, if there is a severe leak, puddles of fluid are common indicators of a failed axle shaft seal. 

Step 1: Raise And Secure The Car

  • Install wheel chocks in front and behind one of your front wheels.
  • Place your hydraulic jack at the lifting locations specified in your car’s manual. Lift the jack into the correct position to get it started. 
  • Lift the axle high enough so that the wheel is off the ground and a jack stand can be placed underneath it. This should be done on both sides.
  • Remove the wheel bolts and the wheel after placing both jacks and stands underneath the vehicle.
  • Set the vehicle’s gears to neutral.

Step 2: Disconnecting The Brake Rotor Or Drum

  • Remove the brake calliper using a ratchet after removing the wheels.
  • Depending on the car, there may be a brake calliper bracket after releasing the brake calliper. The brake calliper is the component that holds the brake pads in place and delivers pressure to stop the vehicle.
  • If you don’t have a brake calliper bracket, your brake rotor should slide right off the axle flange and reveal the entire flange. 
  • To expose the axle flange, then remove the brake rotor.

Step 3: Draining The Differential

  • Except one of the mounting nuts at the top of the differential cover should be removed.
  • Underneath the differential, place your drain pan.
  • With your scraper, scrape between the differential cover and the axle house. Then, with the scraper handle lightly tapped, increase the force as needed to cut through the silicone seal. 
  • Place the cover and mounting bolts aside after removing the last bolt.

Step 4: Removing The Axle Holding Clips

  • To rotate the axle, rotate the driveline that runs into the differential. The little gears inside the ring and pinion carrier are held together and in line by this pin.
  • Remove the axle retaining clip with a magnet, shimmying it if required; observe the slop or movement of the axle by pushing it towards the differential opening.
  • The axle is now free to lift out of the housing after removing the axle retaining clip. Before removing the axle tube, place your second drain container below it. Grab the axle flange with a couple of rags and gently pull the axle out.

Step 5: Axles Must Be Removed.

  • Using the seal puller’s hooked end, hook the inside of the seal and pull or push depending on your position. The tool rolls it out by pressing up on one side of the old seal.
  • Use brake cleaner to clean the interior of the axle tube and wipe off the area where the seal will be placed.
  • Remove the new seal and search for the appropriate seal installation tool.
  • With the seal in the proper location, gently tap it into place with a hammer to get it started.
  • With your fingertips, run some differential fluid around the interior of the seal.

Step 6: Installing The Axles

  • Install the axles gently, without pinching the seal, by inserting the axle end. To get the axle into the carrier and seated in the seal, considerable moving and shimmying will be required. Visually verify the seal for a suitable seat once the axle has been fully fitted.
  • To protect the axle shaft from moving, slide the axle retaining clip over the end of the axle slot and push it out.
  • The carrier pin should be slid into the carrier assembly. When reinstalling the nail in the carrier assembly, ensure the threaded hole is aligned for the retaining bolt to be inserted and torqued to specifications.

Step 7: Installing The Differential Cover

  • Scrape off any old silicone from the cover and differential housing using a scraper. To remove any dirt, use your brake cleaner to wipe the differential cover and axle housing mating surfaces.
  • On the differential cover, apply a quarter-inch bead of RTV silicone. The silicone bead should run parallel to the mating surface’s centre.
  • Place the differential cover on the axle housing with your mounting bolts ready and easy to reach.
  • Follow the torque parameters provided by the manufacturer for your vehicle.

Step 8: Filling The Differential Fluid Reservoir

  • Remove the fill plug from the differential housing’s right or left side, depending on which side it’s on.
  • The amount of fluid your vehicle can contain is listed in the owner’s handbook. The capacity of your car to hold liquids. You should be able to feel the liquid filling the differential immediately below the fill opening.
  • Tighten the rotors, brake calliper bracket, and mounting nuts to the manufacturer’s torque specifications. Tighten the brake calliper mounting nuts to the torque specifications specified by the manufacturer.
  • Return the car to park and begin installing the wheels and wheel nuts. To lock the back wheels, apply the parking brake to the vehicle.
  • Tightening the lug nuts to the manufacturer’s torque specifications using a torque wrench.

Step 9: Take A Test Drive

Please take a short ride in your car to get a feel for it. Moreover, this also aids in differential fluid flow through the axle. Remove the fill cap on the differential after the brief drive to verify the differential fluid. Check the level with your finger and, if it’s low, add what’s needed. 

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Axle Seal Replacement Helpful Hints

It is usually tough to remove the axle nut. Consider extracting the nut via the opening in the centre cap of your wheel, using the brakes or a choke to restrict the wheel from spinning while removing the nut. The most accessible approach to correctly installing a new seal is to use a seal driver. If all of this sounds like more labour than you’re prepared to put into your car, try utilizing BlueDevil Transmission Sealer instead of replacing axle seals…


The axle seals keep dirt, dust, and water out while keeping the differential fluid. Contamination may quickly deteriorate fluid, causing bearings, seals, and even critical components such as the ring and pinion to fail. Fluid leaks and strange or unexpected noises coming from your axles should be monitored to help extend the life of your vehicle. 

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