Results 1 to 6 of 6

Thread: Rear diff

  1. #1
    Join Date
    Nov 2009
    Location
    Mornington Peninsula
    Posts
    655

    Rear diff

    Does a dodgy rear diff give a high pitched whine or a low drone? Is it on throttle or on the overrun or both? Thought I heard low drone today.
    2011 D4 2.7 with everything for touring
    '83 RRC 2 door 300tdi on club plates
    '82 RRC 2 door almost finished on club plates (will always be nearly finished!)
    2013 Freelander (wife's)

  2. #2
    Join Date
    Oct 2009
    Location
    Hunter Valley
    Posts
    889
    Mine was a low drone. Didn't make much of a difference between on or off power. The front pinion bearing is usually the culprit
    It doesn't leak oil, Its sweating power

  3. #3
    Join Date
    Sep 2019
    Location
    Coffs Harbour
    Posts
    10
    Quote Originally Posted by discojools View Post
    Does a dodgy rear diff give a high pitched whine or a low drone? Is it on throttle or on the overrun or both? Thought I heard low drone today.
    Diff drone & tyre drone can sound identical! How much tread do you have on the rear tyres? The only way to be certain if the noise is diff bearing is to find someone with a set of chassis ears. That will give you the answer almost immediately.

    Good luck with it,

    Nick

  4. #4
    Join Date
    Jan 1970
    Location
    Avoca Beach
    Posts
    11,970
    Usually a pinion bearing will make more noise on overrun as the crown wheel and pinion move out of alignment.

    When I had one go in my BMW M3 , it also made a "Wonka Wonka" noise when just crawling along.
    Unsurprisingly a carrier bearing will sound like a wheel bearing with a constant drone.
    Regards Philip A

  5. #5
    Join Date
    Apr 2015
    Location
    Hervey Bay
    Posts
    279
    I thought the diff bearing issue was only a problem in the first couple of years. Looks like yours is a 2013 so I'd be looking at your tyres.

    I had some real nasty tyre noise in ours when we first bought the car. It had Goodyear Wranglers on it then and even though the tyres had plenty of life left in them the outer tread blocks had worn unevenly.

    Run you hand around the tyres tread and see if you can feel any uneven wear. Especially on the outer edges.
    04 L322 Vogue V8 - Work truck
    07 Freelander 2 TD4 SE - The wifes
    74 Leyland P76 Targa Florio - Aspen Green - project
    91 Kawasaki GPZ900R
    96 Seadoo HX Jet Ski

    Previous LRs = 78IIa series - 81, 93, 95 RRC - D2V8

  6. #6
    Join Date
    Nov 2009
    Location
    Mornington Peninsula
    Posts
    655
    Unfortunately not the tyres. It sounds like itís the carrier bearings as itís a constant low drone whether on or off throttle. Confirmed by my local Indy.
    2011 D4 2.7 with everything for touring
    '83 RRC 2 door 300tdi on club plates
    '82 RRC 2 door almost finished on club plates (will always be nearly finished!)
    2013 Freelander (wife's)

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!