Jump to content
Ultimate Subaru Message Board

Recommended Posts

So the 401 is my rear differential makes a whining noise when brought up to speeds around 20 mph. it also likes to "clunk" at times. The whine I understand would logically come from bad diff fluid, or lack thereof. would pulling a differential off another legacy outback of the same year be a route to go if I don't want to risk draining and replacing fluid to find out its trashed? I would love to hear some opinions!!

Link to comment
Share on other sites

The whine and clunk in the diff usually comes from worn ring and pinion teeth or carrier bearings, or both. Best and easier to replace the whole diff with one of the same "gear ratio".

Replacing parts inside is time consuming and if not adjusted correctly you will end up with the same thing you have now.

Try these sites and find one close to you.



Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...