Rear knocking... not diff, maybe driveshaft?

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Rear knocking... not diff, maybe driveshaft?

Postby MWP » Thu Jul 30, 2015 9:18 am

Hey guys,

So im trying to find the rear clunking that recently started happening on accel & de-accel.
I suspected it was a diff mount, but they all look good. Trying to move the diff with a jack resulted in almost lifting the car before the diff moved.
Subframe mounts all look ok too.

Next thing is the mid drive shaft mounts.
Mine look like this.... they are sagging, but im not sure if this is a problem or not?

Image

Image

Thanks all :)
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Re: Rear knocking... not diff, maybe driveshaft?

Postby BAD VIBE » Thu Jul 30, 2015 11:34 am

I have very similar knocking, haven't looked into yet, was hoping a polly dif mount would do it but no evidence, just planning to throw mods at it. Interested to see how yours is resolved GL!
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Re: Rear knocking... not diff, maybe driveshaft?

Postby MWP » Thu Jul 30, 2015 12:42 pm

Its very easy to see if its the diff mount.
Just crawl under the car and look at the condition of the rear diff mount.

You can hear the knocking sound mine is making in this video from about 40sec onwards:
https://www.youtube.com/watch?v=au-hl-j0Q0s
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Re: Rear knocking... not diff, maybe driveshaft?

Postby underscore » Thu Jul 30, 2015 4:30 pm

I can't remember if you have a rear seat or not, but try putting someone back there to try and narrow down the location it's coming from.
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Re: Rear knocking... not diff, maybe driveshaft?

Postby CMS-GT4 » Thu Jul 30, 2015 4:54 pm

Iv'e had to replace my driveshaft bearings of that very reason before. If they are original its a good chance that is the case. I think there has been a thread or two on it here.
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Re: Rear knocking... not diff, maybe driveshaft?

Postby MWP » Fri Jul 31, 2015 3:54 am

Hmmm.
I think i might attempt a MWP™ dodgy, but possibly good fix... Sikaflex everything up :P
Its worked for 6yrs so far with my rear diff mount :)
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