Rear diff bushing - Is mine toast?

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Old Jun 5, 2019 | 03:32 PM
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Rear diff bushing - Is mine toast?

Exploring the forums and saw the rear differential bushings are prone to failure. I inspected mine and it looks like it may have started leaking. Please see picture. Let me know your opinions. Thank you.
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Old Jun 5, 2019 | 05:48 PM
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that doesn't look like its leaking, usually theres a vertical drip line of black fluid from the bushing on the diff cover and the exhaust...yours looks clean except maybe someone spray painted the sub frame around the bushing or something (Rust preventer/converter?)...what mileage are you at?..if you're high miles you may want to change it anyways
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Old Jun 5, 2019 | 06:00 PM
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Originally Posted by Hashim
that doesn't look like its leaking, usually theres a vertical drip line of black fluid from the bushing on the diff cover and the exhaust...yours looks clean except maybe someone spray painted the sub frame around the bushing or something (Rust preventer/converter?)...what mileage are you at?..if you're high miles you may want to change it anyways
I'm at 33k. Maybe it was sprayed when I had my rear diff serviced recently...not sure.
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Old Jun 5, 2019 | 06:37 PM
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You bushing is not leaking. Rest easy, but check on it every now and then.
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Old Jun 5, 2019 | 06:39 PM
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Mine blew out at 42,xxx. Leaked onto the rear diff cover. Great excuse to tell the wife I needed the Z1 differential upgrade package. Trust us, you will know when it has gone out.
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Old Jun 6, 2019 | 12:32 PM
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Originally Posted by Black_Vegas
Mine blew out at 42,xxx. Leaked onto the rear diff cover. Great excuse to tell the wife I needed the Z1 differential upgrade package. Trust us, you will know when it has gone out.
@ss end gets all floppy like? I check mine each time I do an oil change (once a year). Easy enough to peak under there with the car off the ground.
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Old Jun 6, 2019 | 01:22 PM
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35k miles, mine's leaking.
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Old Jun 6, 2019 | 10:16 PM
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Any chance you could supply us with a pic?
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Old Jun 7, 2019 | 09:13 AM
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the leak will look somthing like this:

Rear diff bushing - Is mine toast?-vxquzz8.jpg
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Old Jun 8, 2019 | 09:40 AM
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Thanks for the pic. I have a small stain below mine on the sub frame, but nothing even close to that.
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Old Jun 8, 2019 | 10:13 AM
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Originally Posted by Jsolo
@ss end gets all floppy like? I check mine each time I do an oil change (once a year). Easy enough to peak under there with the car off the ground.
Floppy is an understatement. Excessive wheel hop in wet conditions, when it first goes if you listen close enough you will hear a “POP” sound from the rear end, torque seems nonexistent in my opinion.
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Old Jul 31, 2019 | 09:07 PM
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Recently looked under again and found this:
It must have just started, it was just at the dealer and they would have noticed this.








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Old Aug 1, 2019 | 12:13 AM
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Yep, it's leaking now.
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Old Aug 1, 2019 | 12:18 AM
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It's that time of the month for your [car's] rear end. If you have a warranty let them fix it, otherwise, going after market should be somewhat cheaper. There's a few DIY's in the tech section.

Oh, and there's another fix involving filling it up with epoxy.

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Old Aug 1, 2019 | 04:58 PM
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Originally Posted by kushp14
Recently looked under again and found this:
It must have just started, it was just at the dealer and they would have noticed this.








Quick rundown on dealership life. If your car is under warranty and I KNOW they saw it because you can’t miss it, 9/10 times is the Tech didn’t want to do it because it doesn’t pay well. Warranty work is severely underpaid compared to customer pay(when your car is out of warranty). If your mechanically inclined you can do it at home. It will take about 6 hours to do.
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