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Thread: Rear diff backlash?

  1. #21

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    Hey, thanks MadMax (btw flipping awesome movie that).
    I just noticed my owners book includes "lubricating the U-joint" as part of the service list of items they have in the front.
    Would they be talking about these universal joints on the driveshaft? And how would we lube them?

    I'm still wanting to know this: Other questions in reference to my pics, what is that white stuff sprayed over the bolts and around them, looks like powder? What do u guys think about that rust, is it an issue?
    Last edited by KWAWD; 26-07-2012 at 11:08 AM.

  2. #22
    Administrator Madmagna's Avatar
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    Really can not believe 3 pages of this.....
    Attached is a few pages from the manual, the big bad plastic looking thing in the middle is a joint, similar to the inner drive shaft joint, are called a DOJ.

    As for the white stuff, is most likely some crap off a road, underside of cars get sprayed in crap all the time, this is one of the cleanest AWD undersides out there so you have nothing to worry about

    Your service book is generic, you will noticed many items that are for Tritons, Pajero's etc in there as well ie you do not get Diesel Magna's just for starters (although some do sound like a Diesel)

    The rust, is surface rust, every car has it, put a small amount of sealant on it if you are really worried, I would not bother. DONT put anything on the drive shaft as it is balanced.

    The Universal Joints are not servicable
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    Last edited by Madmagna; 26-07-2012 at 11:40 AM.
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  3. #23

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    That attachment explains it all really. Thanks Mal!

  4. #24

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    Quote Originally Posted by Madmagna View Post
    Really can not believe 3 pages of this.....
    Attached is a few pages from the manual, the big bad plastic looking thing in the middle is a joint, similar to the inner drive shaft joint, are called a DOJ.

    As for the white stuff, is most likely some crap off a road, underside of cars get sprayed in crap all the time, this is one of the cleanest AWD undersides out there so you have nothing to worry about

    Your service book is generic, you will noticed many items that are for Tritons, Pajero's etc in there as well ie you do not get Diesel Magna's just for starters (although some do sound like a Diesel)

    The rust, is surface rust, every car has it, put a small amount of sealant on it if you are really worried, I would not bother. DONT put anything on the drive shaft as it is balanced.

    The Universal Joints are not servicable
    Awesome, thankyou Mal! And thanks to all... I gotta say I enjoy learning about ths stuff.

    Ok, I found a way to minimize the thump going into gear when cold: what I do is put it into R as usual, but only let it sit there for half a second so it doesnt actually engage the gear before moving it to N. Then when I move it back to R there is no big thump! It's like i've taken up the slack or something.
    Seems to work, and it's quicker than waiting for the RPM to come down.

    I think this would work when going into D cold too, just put it into D and then pull it out before it changes and you should be right to go.

  5. #25

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    Ok, I'm now ready to follow up on this. So to recap; there is a bit of a shunt when engaging from R to D or D to R.
    Can be quite strong sometimes. Most obvious when engine is cold, but happens hot too. I think it's probably because the diff has a little slack in it which I'm told is not unusual for these AWD's, but it also has a metallic noise along with that sometimes that I'd like to get checked out. Could be anything really and probably needs a specialist to look at it to make sure there's no problem.

    Can anyone recommend a place in the Melbourne area? They should probably specialize in AWD too, ideally. I have no clue who the big names are in this area. Or should I just go back to the Mits dealers on this?

  6. #26
    SKRd on 95! vlad's Avatar
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    Quote Originally Posted by KWAWD View Post
    Ok, I'm now ready to follow up on this. So to recap; there is a bit of a shunt when engaging from R to D or D to R.
    Can be quite strong sometimes. Most obvious when engine is cold, but happens hot too. I think it's probably because the diff has a little slack in it which I'm told is not unusual for these AWD's, but it also has a metallic noise along with that sometimes that I'd like to get checked out. Could be anything really and probably needs a specialist to look at it to make sure there's no problem.

    Can anyone recommend a place in the Melbourne area? They should probably specialize in AWD too, ideally. I have no clue who the big names are in this area. Or should I just go back to the Mits dealers on this?

    Why not take it to Mal.

  7. #27

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    Quote Originally Posted by vlad View Post
    Why not take it to Mal.
    I don't want to waste Mals time on a N&V issue. we'd have to progressively swap parts until we found anything wrong, would be slow, time consuming process.
    I want to get a specialist to advise if there's any specialised diagnostics they could do to identify the cause using specialised equipment. I have no clue what they might have, but imagine they do this kind of thing all the time.
    Need a place that can assess driveshafts, rear diffs for correct operation, I guess.

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