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Take a look at my rear end

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Old 02-26-2011, 01:23 PM
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Take a look at my rear end

Here are some pictures of myrear end diff that failed.
Attached Thumbnails Take a look at my rear end-01.jpg   Take a look at my rear end-02.jpg   Take a look at my rear end-03.jpg   Take a look at my rear end-04.jpg   Take a look at my rear end-05.jpg  

Old 02-26-2011, 01:25 PM
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Take a look at my rear end

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Attached Thumbnails Take a look at my rear end-06.jpg   Take a look at my rear end-07.jpg   Take a look at my rear end-08.jpg   Take a look at my rear end-09.jpg   Take a look at my rear end-10.jpg  

Old 02-26-2011, 01:28 PM
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Take a look at my rear end

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Attached Thumbnails Take a look at my rear end-11.jpg   Take a look at my rear end-12.jpg   Take a look at my rear end-13.jpg   Take a look at my rear end-14.jpg   Take a look at my rear end-15.jpg  

Old 02-26-2011, 01:29 PM
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Attached Thumbnails Take a look at my rear end-16.jpg   Take a look at my rear end-17.jpg   Take a look at my rear end-18.jpg   Take a look at my rear end-19.jpg   Take a look at my rear end-20.jpg  

Old 02-26-2011, 01:30 PM
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Attached Thumbnails Take a look at my rear end-21.jpg   Take a look at my rear end-22.jpg   Take a look at my rear end-23.jpg   Take a look at my rear end-24.jpg   Take a look at my rear end-25.jpg  

Old 02-26-2011, 01:31 PM
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Attached Thumbnails Take a look at my rear end-26.jpg   Take a look at my rear end-27.jpg   Take a look at my rear end-28.jpg   Take a look at my rear end-29.jpg   Take a look at my rear end-30.jpg  

Old 02-26-2011, 01:32 PM
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Attached Thumbnails Take a look at my rear end-31.jpg   Take a look at my rear end-32.jpg   Take a look at my rear end-33.jpg   Take a look at my rear end-34.jpg   Take a look at my rear end-35.jpg  

Old 02-26-2011, 01:33 PM
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Attached Thumbnails Take a look at my rear end-36.jpg   Take a look at my rear end-37.jpg   Take a look at my rear end-38.jpg   Take a look at my rear end-39.jpg  
Old 02-26-2011, 01:37 PM
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Take a look at my rear end

This is the part that failed.
Attached Thumbnails Take a look at my rear end-28.jpg  
Old 02-27-2011, 02:01 AM
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What year is your RX8? What happened? How did it fail?
Old 02-27-2011, 07:16 PM
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O4 Sport
143000 miles.
The nut that holds the pinion together backed off.
The plastic in the lock nut seems to have failed because I can tighten the nut by hand.
Somehow it must have over heated.
I ran RedLine oil the last 110000 miles and changed it 2 times.
The oil did not smell that bad and all the bearings are fine, gears are fine.
The car was only tracked 2 times back when it had 10000 miles.
Old 02-27-2011, 08:00 PM
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Are you trying to fix it yourself?
Old 02-28-2011, 10:35 AM
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No, too much work and too expensive.
Old 02-28-2011, 10:44 AM
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didnt it give you a sign first? Like a humming sound when you let go of the gas?? it has happened to me 2 and both times i got the noise.
Old 02-28-2011, 10:46 AM
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Our diffs do get hot so more frequent changes are needed. Not sure if that would have helped that nut or not though. But hey you got your use out of it. check out www.mazmart.com, www.partsgroup.com, or www.revvinsevens.com if you have not found a replacement.
Old 02-28-2011, 08:29 PM
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On a Friday I thought I heard something. (Did not use the car over weekend)
On Monday the noise was there, so in my head I started the process of what I will need to do with it (thinking I have some time before complete failure).
On Tuesday the off throttle noise was getting louder.
On Wednesday the off throttle noise was loud. Ok so there’s goes the weekend, and then it proceeded to lock-up on the 5 Fwy in the fast lane. (gota love that)
I got an 06 out of a junk yard, it’s in now with Idemitsu gear oil.


I started this thread mostly to see if any one else has had a similar failure and to show other members whats inside are diffs.

Last edited by RenKat; 02-28-2011 at 08:33 PM.
Old 02-28-2011, 08:44 PM
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Glad to hear you got things going again. Diff failures are rare here. I suspect the race guys have had more failures though.
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