Question about 1999 Nissan Pathfinder

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Rear Axle Repair/Replacement

The differential fluid is leaking from rear axle into brake drum. Am told the axle needs to be replaced. What should this cost

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  • user48075 Aug 30, 2008

    I have the same issue. The axle fluid leaks.

  • Anonymous Feb 16, 2009

    Have 2005 nissan pathfinder....rear u joint needs replacing....but Nissan says I have to buy the whole rear axle assembly...is this correct....how much should this repair cost

  • Anonymous Apr 16, 2009

    Have the same problem on a 1998 pathfinder.

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Unless the axles are somehow damaged all you will need to replace are the axle seals and the brake shoes themselves,

Posted on Sep 15, 2008

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Why do I have oil in my breaks of my 1996 Chevy


if your talking about the rear brakes its probably the differential axle seal that is leaking differential oil out of the rear end onto the brake shoes. you will have to pull the rear axle to replace the seal and clean the rear brakes/area with brake cleaner or replace the rear brakes if they are too soaked with brake fluid.

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How to replace grease seal on rear axle


Leaking oil at the rear wheels can be one of two things, Easy fix is brake fluid, this would be the rear brake wheel cylinder leaking. Check your brake fluid tank under the hood for low fluid. If that is ok. Your leak may be your rear axle shaft seal. You need to remove the tire/wheel ether way. Jack up the car to pull the wheel, take your lugs loose while the tire is still on the ground, it is easy to take them loose this way. Take the EM: brake off, and jack up this side of the car. Your car could have disk or drums as both are offered on some Dodges. Once the tire is off you will see if you have disk or drums brakes. If drums you will need to pull the drum off at access the brake cylinder to see if that is leaking or not. If drums you have to back off the brake shoes by the adjusting wheel thru a small access window in the back plate. If you have disk brakes the caliper is right there and will be easy to see if it is leaking. If you have determined it is the rear axle seal leaking, this may be best done by a shop, due to needing a few special tools to remove the axle and then reinstall a seal. You will need a slide hammer. If drum brakes you will have to remove the brake backing plate, this means shoes and all hardware, please take pictures and get as good focus as you can to see how everything goes back together. Once down to the axle mounting, remove the 4 bolts and attach the slide hammer and pop out the axle, catch any fluid that will leak out, once out you can determine which type of seal set up you have as some have press fit collars that may have to be cut off. . Hope this helps FixYa up.

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Left rear axle leaking - Dealer states $820 to fix due to many parts within the axle. Does this sound right?


fix same problem myself...these's' only 1 inner seal (differential output seal only-about 10$ each) that needs to be replace and new brake shoes (20$ part)..assumed u have rear drums and it leaked diff fluid on the brake shoes..but, i also replaced the brake cylinder (15$ part)-u have to disconnect brake cylinder to remove axle..look on internet for procedures..http://www.yotatech.com/f128/replacing-rear-axle-seals-3rd-gen-4runner-76339/..hope this helps..all dealers are ripoffs-worked at toyota for a year

Jul 31, 2010 | 1999 Toyota 4Runner

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When do you change the fluid in the rear differencial. I was told by a mechanic that the rear differencial fluid was low and had metal shavings in it, and that the fluid needed to be changed and that it...


I'd say yes. The differential fluid is often overlooked by oil change technicians, even though it's something that should be topped off periodically.

It probably would cost more than that to repair it once it wears out.
Axle Housing Assembly Removal & Installation To Remove:
  1. Lift the vehicle.
  2. Drain the lubricant from the rear axle housing.
  3. Remove the rear axle assembly from the vehicle.
  4. Remove the brake caliper brackets from the rear hubs.
  5. Remove the rear cover and gasket from the rear axle housing.
  6. Remove the rear axle shafts from the vehicle.
  7. Remove the rear differential assembly from the vehicle.
  8. Remove the brake backing plates from the rear hubs.
  9. Remove the rear drive pinion shaft yoke and seal from the drive pinion.
  10. Remove the drive pinion from the rear axle housing.
To Install:
  1. Install the drive pinion into the rear axle housing.
  2. Install the rear drive pinion shaft yoke and seal onto the drive pinion.
  3. Install the rear differential assembly into the vehicle.
  4. Adjust the differential side bearing preload and the backlash.
  5. Perform a gear tooth contact pattern check.
  6. Install the brake backing plates onto the rear hubs.
  7. Install the rear axle shafts into the vehicle.
  8. Install the rear cover and gasket onto the rear axle housing.
  9. Install the brake caliper brackets onto the rear hubs.
  10. Install the rear axle assembly into the vehicle.
  11. Refill the lubricant in the rear axle housing.
  12. Lower the vehicle.
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I think that changing the fluid would take about an hour, and depending on the garage, and the labor rate, that they might elect to take the rear cover off of the differential, and drain it that way and replace the fluid once it was put back on. He could inspect the gears while the cover was off and tell you how bad it was.'

Do you hear any clunking or gear mesh noises from the rear when putting it in gear or running the vehicle?


Some mechanics would simply top off the fluid and wait until it wears out, which could be several thousand miles in the future.

Use gear oil for it of the recommended viscosity in the service manual.

Generally thicker than motor oil.

So, adding fluid would cost only the amount of the fluid plus some labor.
A bottle of fluid might cost $9.99 or so depending on where you get it.

You might be able to do this yourself if you crawl under there, remove the fill plug at the top, and just add gear oil. If there isn't enough room you might drive it up on some ramps and then crawl under there.

Jul 29, 2010 | 2004 GMC Envoy

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The drum isn't leaking, either the wheel cylinder is leaking or the line is leaking

Oct 07, 2009 | 1989 Ford Bronco II

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1993 Ford F-150 drum brake problem


It appears the rear axle shaft seal is leaking. You will need to pull the axle and replace the seal. Then check the rear end for adequate gear oil. The iron filings I am not to sure about. It sounds as if something came loose from the brakes or brake hardware and got chewed up in the drum. You will need to replace the brake shoes and maybe the brake hardware kit. Always change the shoes or pads on both sides when working on brakes, rear or front. If the inside of the drum is not perfectly smooth it will need to be turned or replaced. If this were brake fluid leaking from the wheel cylinder the master cylinder would be low on fluid and your brake pedal would go down much further than normal.

Jul 18, 2009 | 1998 Ford F150 Regular Cab

1 Answer

Grease and differential oil inside left rear drum


Not that difficult, raise and support the rear of the truck and remove the wheels. Might as well replace both sides so you know you have new seals, remove the differential cover and drain the fluid. Once differential is opened and cleaned , remove the axle "C" clip that hold the axle in place and slide the axle out. Once the axle is out remove the wheel seal and clean around the area. This would be a good time to replace the wheel bearing too since you have access to them and there not that expensive. Install the new bearing and seal, note make sure you oiled the bearing and seal before installing it back and take care when installing the axle back in and "C: clip. Use RTV silicon gasket maker to seal the differential cover and wheels back on and lower. If your lazy like i am, you can drain the differential fluid and replace it with a 50/50 mix with gear oil and Lucas engine oil additives. That may stop the leak and get you a few more miles. You gear oil is (ford 75W-140) (Dana 80W-90)and the capacity is 2.6 liters and 3.5 liters if you have the 10.25 Ring gear. Good luck and hope this helps.

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You will need to remove the differential rear cover,drain fluid, remove wheel, brake drum, (rotor) . Unbolt center diff. pin, carefully remove (don't loose shims) push axle in remove lock keeper, then slide out axle, replace seal, put some grease on it, slide axle in reverse all to install.

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There are 4 bolts for each rear axle. They are located behind the rear brake drums. Remove e-brake cable from rear drum and take off brake line.(carefully). I recomend draining and changing your rear differential fluid too, because if the fluid by run out of axle housing. also you should replace the seals for the axles of if you are changing the bearings. When you are done don't forget to bleed your brakes, and hooking up e-brake cable. I hope this answers your question.

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2000 gmc both rear tire oil leakage.


You are correct, it's not brake fluid. Check the level in your rear axle, it sounds like you have bad seals in the axles allowing the rear differential gear oil to leak inside the brake drums.
This is a heavy weight oil, 80 or 90 weight. This leakage will ruin your brake pads, and if enough leaks out, your rear differential will blow. The seals aren't expensive, but it's a lot of labor to pull everything apart to get at the seals, plus new rear brakes. My Ford ( and I'm sure your GMC) require removal of the rear axles to change the seals. Good Luck! countrycurt0

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