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Old 01-13-2020, 12:30 AM #1
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Front Diff: Replace Axle Seal? or Both Seal and CV?

When I went to change my front diff gear oil today, I noticed not much old oil came out. Thought this was odd then noticed this on the passenger side CV:

Appears the front differential seal is leaking. Also, I had the passenger side CV replaced a few years ago by a mechanic (this was before I started doing my own work), so I don't know what kind of CV axle he put in.

I'm definitely planning on replacing the axle seal (PN: 90311-47013), but I'm not sure if I should replace the CV as well. I've read that poor aftermarket CV axles can have a poor fit with the seal and can cause leaking.

Has anyone experiences something similar? Any tips or advice is welcome.
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Old 01-13-2020, 12:34 AM #2
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If the boots look good just change the seal.
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Old 01-13-2020, 10:42 AM #3
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im trying to do some work with this too. trying to sort out why theres a 43430-60061 and xxxxx-60060 difference when i see or thought the axle assembly was for either side????

also, as for these seals, is it just that part reference above 90311-47013 (one for each side, same part # if doing both sides?) Seal, Oil (For Differential Side Gear Shaft)

what about the 90311-41009,
(FOR FRONT AXLE DIFFERENTIAL CARRIER)

trying to nail this all down and make a move today
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Old 01-13-2020, 10:57 AM #4
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MY GARAGE
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The axle seals are now part number 90311-47013 and 90311-47027. I just swapped mine out as a part of doing my CV axles. Unfortunately, I can't remember which was left and which was right, but those are the part numbers for the seals.

My axles were part number 43430-60061. From what I can see in your picture, you at least have an OEM bell housing there next to the axle seal. The aftermarket ones I pulled off of mine did not have the notch on the tulip.

If you have known good OEM CV's, do not replace. At most reboot. But doing the axle seals is not a bad idea at all. Also keep in mind that the diff only holds 1.5 qts. You may not drain very much from it, though the picture you posted definitely looks like a leaky axle seal to me.
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Old 01-13-2020, 11:18 AM #5
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thanks for info.

OP good luck
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Old 01-13-2020, 12:30 PM #6
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CV Axle Shaft:
  • 43430-60061 (both sides)

Diff-side oil seals:
  • 90311-47013 (Timken 710595) - right
  • 90311-47027 (Timken 710596) - left
OEM and Timken are made by the same manufacturer (NGK) from my research.

Wheel-side knuckle dust seals:
  • 90316-A0001 (both sides) - alt Timken/National 710573
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