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diff, all you need to know

Discussion in 'V6 Development And Modification' started by immortality, Apr 2, 2008.

  1. immortality

    immortality Moderator Staff Member

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    No, The Harrop truetrac to suit our M78 diffs is a full custom centre produced by harrop and filled with the internals supplied by Eaton. the Harrop actually has a higher power rating as the centre is made from better steel than the standard Eaton truetrac that is used in the larger/later M80 diffs.

    The Harrop trutrac is a very nice bit of gear (and priced to match unfortunately).
     
  2. Tsunamix

    Tsunamix Member

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    You're dead right. VY rear subframe has altered pickup points to introduce a more positive camber point.

    I thought long and hard about swapping the vt2 Subframe for a VY2. Ended up getting a freebie 4 way camber kit so passed on it.

    I'd like to know if he achieves this as rear wheel width is a lmiting factor already on mine, and the new engine GASP it's finally going in :)
     
  3. GMVPSS

    GMVPSS Active Member

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    Hi All,

    Great thread, but I think it is missing info on the VE VF Diffs?

    I am looking to buy a VF SV6 and I have seen that the 3.27:1 rear end comes without LSD on the autos and only the manuals get the LSD.

    I found a brand new 3.70:1 centre that I bought for a steal and will fit it to the SV6 once I buy it. (I have also bought wheels and some other parts already as well! I know I am crazy.)

    On the diff, from what I have found, all I need to do is change the Tri-Flange on the front of the diff as it is smaller on the V6 than on the V8. Can anyone confirm this?

    I believe the V6 drive shafts are smaller, but the axles are same going by the part numbers for various brands of LSD centres available.

    Look forward to your advice.
     
  4. BrutalStormSC

    BrutalStormSC New Member

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    Ok, great write up, lots of good info. Still can't find anything relating to later models. Can you please tell me the difference between a VX L67 M80 LSD, and a VY L36 (insert diff model here) LSD? Any help is appreciated. Cheers.
     
  5. immortality

    immortality Moderator Staff Member

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    The M80 LSD is different to the smaller M75/M78 centres used in the V6 models and are not interchangeable.

    Yes, the V6 uses a smaller coupling than it's big brother models.
     
  6. GMVPSS

    GMVPSS Active Member

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    Thanks immortality.

    The V6 yoke is around $200 from holden. I have the brand new 3.7 centre sitting on our office floor along with wheels, tyres and brembo brakes. :) Just need the car to fit it all to now.
     
  7. br77

    br77 New Member

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    hello guys,
    whats the best upgrade option for an auto VF SV6?

    i am looking for an upgrade soon.

    thanks in advance
     

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