Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Black Watch Alpine


User Tag List

+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 15 of 24
Like Tree21Likes

Thread: Rear diff whine

  1. #1
    Member paddygonebush's Avatar
    Join Date
    Feb 2012
    Location
    Piopio, Christchurch, Laos
    Posts
    171

    Rear diff whine

    So out for a hunt this morning and i noticed that as i hit around 3000rpm i start to get a buzz/whine from the rear. This would get worse as i accelerate up to 3500rpm to more of a high pitched whine. No noise when I am coasting or braking. I'm assuming its a rear diff issue?
    Truck is a 96 3rd gen Surf 2.7 petrol auto.

    Any thoughts on it as to my next move with it.
    Last edited by paddygonebush; 11-10-2017 at 03:19 PM.

  2. #2
    Member
    Join Date
    Jun 2015
    Location
    christchurch
    Posts
    6,240
    banana skins in the diff does the job
    P38, Nibblet and berg243 like this.

  3. #3
    Member
    Join Date
    May 2016
    Location
    Hamurana, Rotorua
    Posts
    296
    Have experienced similar in two vehicles over the last 40 odd years. I thought diff, but in the D21 Nissan ute it was a wheel bearing and in the Holden (model with th 6 cyl Nissan motor) it was a diff bearing.

  4. #4
    P38
    P38 is offline
    Member P38's Avatar
    Join Date
    Dec 2011
    Location
    Hastings
    Posts
    5,717
    Worst comes to the worse you will have the pleasure of swapping out the diff head or the entire diff if you need to.

    I could whine for ages yet.

    I'd start looking around for a replacement diff from a non runner or a wrecked one.

    Cheers
    Pete
    Arguing with an Engineer is like Wrestling a Pig in Mud.

    After awhile you realise the Pig loves it.

  5. #5
    Member gadgetman's Avatar
    Join Date
    Jan 2012
    Location
    Christchurch
    Posts
    14,891
    Quote Originally Posted by gonetropo View Post
    banana skins in the diff does the job
    I was thinking more volume on the stereo.

    Not something I've had an issue with.
    mikee and Steverusty like this.
    There are only three types of people in this world. Those that can count, and those that can't!

  6. #6
    Member paddygonebush's Avatar
    Join Date
    Feb 2012
    Location
    Piopio, Christchurch, Laos
    Posts
    171
    Quote Originally Posted by gonetropo View Post
    banana skins in the diff does the job
    Organic or GMO?
    If they are green do they last longer? Or does over ripe ones give more lubricant?

  7. #7
    Member
    Join Date
    Mar 2012
    Location
    South Waikato
    Posts
    3,214
    Might be a dumb question, but, It is out of four wheel drive?
    veitnamcam and Savage1 like this.

  8. #8
    Member
    Join Date
    Nov 2012
    Location
    BOP
    Posts
    16,805
    Wife in the back seat?
    Boom, cough,cough,cough

  9. #9
    Member Tommy's Avatar
    Join Date
    Nov 2014
    Location
    W-BOP
    Posts
    5,336
    It might not even be the diff, so don't panic yet. The number of times I've had someone drop a vehicle off with glum look for something apparently major, only to find a stone, plastic bag, bit of wire, bent telltale tab etc.. Get it looked at on a hoist by someone who isn't a burgalr
    Identify your target beyond all doubt

  10. #10
    I hate tacticool Konev's Avatar
    Join Date
    Apr 2012
    Location
    Queenstown
    Posts
    919
    check fluids first, might just be really scummy. jack up the rear end and have a play with the rear wheels, bit of wobble on the rears will suggest a bung wheel bearing, need a workshop press to change them.

    chances are its the above, or the shaft bearing. none are majors bbut best fix it now.

  11. #11
    Almost literate. veitnamcam's Avatar
    Join Date
    Dec 2011
    Location
    Nelson
    Posts
    20,140
    Diff noise will be speed and load dependant regardless of gear and rpm....are you sure its diff noise?
    gadgetman likes this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  12. #12
    If your not fast your last Shootm's Avatar
    Join Date
    Dec 2011
    Location
    Mighty Manawatu
    Posts
    2,764
    How much water have you played in?

    I Have Sexdaily. I mean Dyslexia! Fcuk!

  13. #13
    Member
    Join Date
    Nov 2014
    Location
    Christchuch New Zealand
    Posts
    3,179
    Sounds more gearobx like. Especially if it goes away when power is lifted. I just did the bearings /gearbox in my Vitara and the input shaft was causing the issue. Bearing had not collapsed but it was not far from going.....

  14. #14
    Member
    Join Date
    Jun 2016
    Location
    Gloucester NSW Australia
    Posts
    34
    Quote Originally Posted by Maca49 View Post
    Wife in the back seat?
    Mother inlaw???

  15. #15
    Member ROKTOY's Avatar
    Join Date
    Jul 2016
    Location
    Nelson
    Posts
    1,230
    Wheel bearings are a possibility,, they generally don't make too much noise unless absolutely rooted. Jack the truck up, wriggle the tyre and feel for play, stuffed wheel bearings often leads to oil leaks from axle seals, The oil drops into your drum brake and then weeps out the drum onto your rim.
    Your other option is diff bearings, normally the pinion bearings that give trouble first. Lay underneath grab the pinion (rear of the driveshaft where it bolts to the rear diff, and wriggle it and feel for play (up/down, left/right, not rotational play) Check your diff oils for water contamination, if you have done any water crossings, or played in water over 40cm (ish) and you don't have extended diff breathers there is a good chance you have water in your rear diff, and that is a bearing killer.
    Is the noise you are hearing RPM related or speed/acceleration related? If RPM related it could also be a gearbox or transfer case issue, output bearings can give up if your oil level is too low or if you get water in there, (deeper water crossings etc, no extended diff breather)
    Have a good look for oil leaks around your rear diff and your transfer case/gearbox, it could point you in the right direction.
    veitnamcam, gadgetman and stingray like this.

 

 

Similar Threads

  1. Diff locks
    By Rock river arms hunter in forum Outdoor Transport
    Replies: 5
    Last Post: 12-10-2017, 10:33 PM
  2. Suzuki Escudo rear diff
    By subs in forum Buy, Sell or Swap
    Replies: 0
    Last Post: 29-01-2014, 10:10 AM
  3. To celebrate 1000 posts - a little whine
    By Bavarian_Hunter in forum The Magazine
    Replies: 11
    Last Post: 11-12-2013, 06:25 PM
  4. LSD or Diff Lock
    By Druid in forum Outdoor Transport
    Replies: 26
    Last Post: 26-09-2013, 04:26 PM
  5. DIFF LOCKS
    By rob270 in forum Outdoor Transport
    Replies: 11
    Last Post: 22-09-2012, 05:37 PM

Tags for this Thread

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
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!