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Leaky rear Diff' time... :(

Discussion in 'Defender 90 / 110 / 130' started by v8250, Oct 13, 2021.

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  1. v8250

    v8250 Well-Known Member

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    Well it's bound to happen sometime, the rear diff' has started to leak out of the casing front nose. Just looking to price up parts list on lrworkshop https://www.lrworkshop.com/diagrams...-suspension/rear-axle/differential-rear_52626

    Is this a straight forward job and is there anything I should be aware of...better parts than others/upgrades?

    Oh, and it's not due to over pressurisation/blocked diff' breather. All breathers are new within past 12mths :)

    eta - is this the only kit req'd? https://www.lrworkshop.com/parts/STC4858

    Thank you
    v8250
     
  2. Brown

    Brown Well-Known Member Full Member

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    Yes, that looks about right to me. Very similar to what I had last time mine was getting moist.

    Looks a bit of a belt and braces affair - I see you get a bolt, a nut and a split pin so as to fit almost any style of pinion shaft!

    I try and avoid Britpart seals where possible, but that goes without saying. I try and get Corteco ones.

    Not too hard to do on the vehicle. Sometimes it needs a bit of a tug with a puller to get the flange off the splines. The only fiddly bit is getting the new seal to drive in straight. Sometimes a piece of pipe or a really big socket can be useful.
     
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  3. flat

    flat Well-Known Member

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    Absolutely get corteco.
    I fitted BP ones originally and changed them about 6months later as they started leaking again.

    quite an easy job tbh
     
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  4. miktdish

    miktdish Guns n Chainsaws Full Member

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    You will likely only need the Corteco seal.
    As mentioned its a pretty easy job although the nut tightens at 130NM so you need a good torque wrench and some room to work.
    I use a 50mm socket to refit the seal and a hefty screwdriver to lever the old one out.

    old-seal.jpg
    new-seal.jpg
     
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  5. frog hopper

    frog hopper Well-Known Member

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  6. v8250

    v8250 Well-Known Member

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    Last edited: Oct 14, 2021
  7. tottot

    tottot Well-Known Member

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    Number 11 is the seal, number 12 is the dust guard that usually comes off still on the drive flange.
    Seal removal tool, a sort of curved hook on a handle available. After years of getting them out with a screwdriver:mad: I tried out a mates removal tool and had to get one myself.:)
     
  8. lynall

    lynall Well-Known Member Full Member

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    I have been using them hooked removal tools for years, and everytime without fail as the seal pops out I manage to flick diff oil all over my face/chest.
    Same cheap tool also works on the trucks, but it does start to bend!
     
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  9. 123-eddy09

    123-eddy09 Active Member

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    If you currently have the square flange and are replacing with the round flange kit remember to remove the spacer fitted behind the square flange, the round flange doesn’t require it.
     
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  10. v8250

    v8250 Well-Known Member

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    Thanks Eddy, I'm going to do just this...buy updated flange kit, throw away the el cheapo seal and install a Corteco jobbie.
     
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  11. flat

    flat Well-Known Member

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    To get the old seal out I just screwed a self tapper into it then pulled it out with pliers
     
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