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Thread: Life of Puma Rear Diff's

  1. #1
    Join Date
    May 2011
    Location
    Townsville
    Posts
    21

    Question Life of Puma Rear Diff's

    Hi all,

    Sheldons done 74000 K's. (09 Puma)

    Well Saturday avro while out with the boys from LROC Syd, Sheldon's diff starting talking to me, 'yelling actually'.

    Today dropped it by the boys at L/R Trivett Parramatta to have a squiz and yep the diff's cactus. The pinion and crown gear have been having a blew.
    A couple of pins in the diff also loose picked up by a little clunking noise as you take off from standing start and pulling up. (Might have to check Geoff the Disco).

    I couldn't really tell there was a problem with the clutch as I'm still comparing with my previous L/R's.

    So under warranty Trivetts are changing diff, clutch and shimming the T'case????

    This was the first time I'd popped into Trivetts, (after moving from FNQ ) and I'm very happy with my initial dealings. They were upset they couldn't do it straight away. I'm happy it's getting done.

    Should I expect more than 74000K's?????????

    What do others get out of their diffs or should I assume it's an isolated incident / event?


    Still Love the Puma

    Qld'er.

  2. #2
    Join Date
    May 2007
    Location
    Safety Bay
    Posts
    8,041
    They aren't set up correctly from new and thats what stuff's them,Ashcrofts had a photo showing the pinion barely meshing with the crownwheel on a brand new replacement center. Pat

  3. #3
    Join Date
    Apr 2008
    Location
    Perth
    Posts
    48
    Our 2008 Puma is on it's 3rd rear diff, 42k on the clock.

    The 3rd one has that 'dry running' sound when backing off at around 90kmhr, but heaps better than the first two.

    Replacing it with the good gear from Ashcrofts would be great, but does that solve the problem ?

    How hard is it to fit a diff . . . properly.

  4. #4
    Join Date
    Aug 2006
    Location
    Melbourn(ish)
    Posts
    25,713
    Ford quality control at its best... makes the joke about the gaps in the panel work of a landy look like its been toleranced with a laser micrometer.

    setting up a diff properly is a 3 or 4 out of 5 spanners depending on which diff it is and which gear youve got to do it with.
    Dave

    "In a Landrover the other vehicle is your crumple zone."

    For spelling call Rogets, for mechanicing call me.

    Fozzy, 2.25D SIII Ex DCA Ute
    TDI D1(parting/ed)
    Tdi autoManual d1 (Kept it for the girlfriend)
    Archaeopteryx 1990 6x6 dual cab(This things staying)


    If you've benefited from one or more of my posts please remember, your taxes paid for my skill sets, I'm just trying to make sure you get your monies worth.
    If you think you're in front on the deal, pay it forwards.

  5. #5
    Join Date
    Feb 2010
    Location
    Stellenbosch, Republic of the Western Cape, RSA
    Posts
    662
    Rear diff lasted just short of 30,000km on my 90. Didn't even do much offroading

  6. #6
    Join Date
    Aug 2006
    Location
    WA
    Posts
    13,786
    Puma diffs are not fit for purpose IMHO.

    For means of comparison, the diff in my 110 lasted ~350k km before I removed it when fitting a locked (disc-disc) axle.

  7. #7
    Join Date
    Jan 1970
    Location
    under a rock, next to a tree, at Broadmarsh
    Posts
    6,738

    Diff blues

    I would like to see the blue marks, after a noisy diff has been loaded and with engineers blue added.

    This is the only way that you can read whether a diff has been setup properly.

    It should be loaded as much as if the vehicle is say climbing a steep bank, then the blue marks should show if there is any flex in the carrier, etc.
    .

  8. #8
    Join Date
    Feb 2009
    Location
    Brisbane
    Posts
    2,535
    I have an Ashcroft locker and axels awaiting for installation. My puma has 40K on it and has had no problems with the running gear.

    Should I be buying a pinion and crown gear as well perhaps to equal the locker.
    Jason

    2010 130 TDCi

  9. #9
    Join Date
    Sep 2010
    Location
    Hobart
    Posts
    19
    I got less than 30000Km out of both my front and rear diffs in 2008 130.

    Rear now has a salisbury with detroit locker

  10. #10
    Join Date
    Apr 2009
    Location
    Central Coast NSW
    Posts
    1,576
    2008 PUMA,

    35,000k's - no prob's (touch wood)

    Front and rear diff's are quite as.

    I have fitted Ashcroft half shafts front and rear, Ashcroft drive flanges and Ashcroft CV's, all 4340 CR-MO

    Next on the list is Ashcroft lockers and HD crown wheel/pinion sets.

    I would love to hear from owners who have not had any problems, just to balance this thread out.

    Cheers

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