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General E46 Forum
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Old 11-20-2013, 09:27 PM   #1
pistonhead76
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Rear Diff Bushing Question/thought

I was wondering since the rear diff bushing is such a pain in the arse to replace, has anybody come out with a pop-in replacement? I mean, keep the diff in the car or remove the rear cover, drill out the rubber and slide in a poly or hard rubber insert. Am I missing something?
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Old 11-20-2013, 09:29 PM   #2
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do you know how heavy those rear diff are? even if it's possible the new bushing wouldn't fit snug in therefore damaging the rear diff more.
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Old 11-20-2013, 09:29 PM   #3
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Originally Posted by pistonhead76 View Post
I was wondering since the rear diff bushing is such a pain in the arse to replace, has anybody come out with a pop-in replacement? I mean, keep the diff in the car or remove the rear cover, drill out the rubber and slide in a poly or hard rubber insert. Am I missing something?
no. but there's two bushings in the front. so the diff kinda has to come out if you're doing all 3.

but yes, poly just slides in. i wouldn't use poly though. the diff bushings is going to be taking most of the knocking and vibration. so putting poly there will have the harshest consequences.
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Old 11-20-2013, 10:03 PM   #4
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Re: Rear Diff Bushing Question/thought

Rear diff bushings are bitch but don't replace till u need to. My main was bad but the fronts were good. I replaced all three and the fronts are the worst. U can't fit an air hammer in there

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Old 11-20-2013, 10:45 PM   #5
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I didn't find the diff bushings to be too bad. Having the right tools will make or break you on it though and the diff itself wasn't as heavy as I thought it was going to be but still a good idea to support it with a jack when you take it out.

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Old 11-21-2013, 08:23 AM   #6
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So poly bushings do slide into the old rubber bearing's outer metal shell?
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Old 11-21-2013, 08:32 AM   #7
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No, you have to remove the complete old bushing, including the metal shell of the old bushing.
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Old 11-21-2013, 11:41 AM   #8
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It's only hard to do if you don't have the right tools. Kinda like the rtabs. It's still time consuming but there are so many more technical and tedious jobs out there.
They do make some poly ones but as mentioned its an area that would transmit harshness on that bushing. Meyle HD makes a heavy duty version that's rubber and exact design as stock. I noticed no issues using that one years ago on my previous Coupe.
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