The mechanic says I need a drive shaft bearing and pinion seal and that the differential is leaking, there are no signs of leaking?

Tiny
RUNDEEP1
  • MEMBER
  • 2015 HYUNDAI GENESIS
  • 3.6L
  • V6
  • 4WD
  • AUTOMATIC
  • 101,000 MILES
The mechanic says I need a drive shaft bearing and pinion seal and that the differential is leaking. There are no signs of any leaks under the vehicle or on the ground. How is that possible?
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Thursday, August 4th, 2022 AT 1:13 PM

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Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,005 POSTS
Hi,

It isn't odd for a pinion seal to leak. If it isn't a bad leak, it can wait, but you need to check the differential fluid to make sure it doesn't get low.

I attached two pics below. If you look under the rear of the vehicle, follow to where the drive shaft attaches to the rear differential. See pic 1 for a pic of the differential. I circled where the seal is located. Inspect that area to see if it is wet or if it has any signs of a leak.

Pic 2 shows an exploded view of the differential. I highlighted the seal he is referring to for your reference.

Let me know if you have questions and if this helps.

Take care,

Joe

See pics below.
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Thursday, August 4th, 2022 AT 9:13 PM

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