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Old Jun 19, 2023 | 07:20 AM
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Default 2003 es300

My 2003 es300 is leaking oil on the front passenger side differential. The leak is coming from between the axle shaft and the seal. Not the larger part where the seal meets the differential housing. I replaced the seal and it's still happening. Can anyone offer any information/ help?
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Old Jun 19, 2023 | 09:07 AM
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Can you post some pics? Your description is not clear to me.
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Old Jun 19, 2023 | 09:14 AM
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Its leaking from between the lip of the seal and the axle shaft
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Old Jun 19, 2023 | 09:19 AM
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Where did you get the seal? Are you sure you didn't dislodge the spring that is on the lip of the seal? Another cause can be a scratched axle shaft.
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Old Jun 19, 2023 | 09:25 AM
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I got the seal from Lexus. Not sure about any spring. The old seal popped right out with the tool.

I didn't feel any lip or anything for the new seal to butt up to when i put it in. I pressed it to where it was flush with the differential. I'm a little low on fluid and keep adding to maintain the proper level. There's a low hum when I'm driving also
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Old Jun 19, 2023 | 03:14 PM
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If you hammer on the seal too hard it can pop the spring out solution is to pack with heavy grease (like Redline).
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Old Jun 19, 2023 | 03:19 PM
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So pack the whole.space behind the seal, got it Thanks!
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Old Jun 19, 2023 | 03:40 PM
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Yes exactly.
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Old Jun 20, 2023 | 06:43 AM
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You can see it in this pic

I found when putting the seal in, if it's crooked just a little, you will really fight it. If you get it just right, it will go in fairly easy - Ive got it started and almost to final position just by pushing it with my thumbs. Then used short piece of pvc pipe that fits the diameter of outer portion of seal and pushed it (& tap with hammer) flush to case

Also, theres is a Dust Cover 41336-06020 on the CV axle that mates with seal to keep the debris out. Based on your photo, it looks like its missing




looks similar to picture below



It will get trashed if you pry against it to pop the axle out
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Old Jun 20, 2023 | 06:58 AM
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Thank you!
the old axle didn't have that dust cover. The new one does. I made the mistake of buying an aftermarket seal. When I went to seat the new one it went all the way into the differential. I just Got an oem one from Toyota. I can't work in until this weekend.

With the OEM seal, redline grease and the proper axle with the dust cover , hopefully will correct the issue. I appreciate your help!! I'll post once it's in. Thank you again!
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Old Jun 25, 2023 | 05:09 PM
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Ooookay, factory axle seal, recline sticky grease... same result, might actually be leaking more.

The spring on the new seal is in place, seated the seal properly, no burrs or imperfections on the mouth of the differential.

Fluid still leaking from between the axle shaft snd the oart of the seal covered by the dust cover on the axle.

I lost about 2 quarts of trans fluid whe i removed the old axle seal. Dont know where to turn or what to do ??

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Old Jun 25, 2023 | 06:10 PM
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Do you have the brand and part number of the CV axle you currently have in the car?
And as a side note- when checking trans fluid level via dipstick it's with the engine running
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Old Jun 25, 2023 | 06:18 PM
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Old Jun 26, 2023 | 04:59 AM
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Yes I'm aware of how to check the t
fluid
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Old Jun 26, 2023 | 06:14 AM
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Bad axle? What else could it be assuming fluid is leaking past the seal. I personally loath Cardone axles too many issues.
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