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Diff swap to sedan

Discussion in 'VB - VK Holden Commodore (1978 - 1985)' started by magnetvh, Dec 10, 2012.

  1. magnetvh

    magnetvh New Member

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    G'day people.
    Before i buy it, Can someone shed some light on wot mods I have to do to fit a wagon V8 10 bolt LSD diff into a sedan.

    Thanks
    Mick
     
  2. SL/ENUT

    SL/ENUT The SL/E Fanatic!

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    Don't do it. Its a tad more wider than a VL sedan diff.
     
  3. ajvx01

    ajvx01 New Member

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    Cheers^ had always wondered if they were different!
     
  4. SL/ENUT

    SL/ENUT The SL/E Fanatic!

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    My VB currently has a wagon diff in it, with the sedan shocks, rear stabilizer bar welded on. Looks ugly welds too. Always have the left hand side rear tyre rub on the wheel arch lip. An adjustable pan hard rod is useless cause the right side would rub then.
     
  5. Smitty

    Smitty Active Member

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    plus the shocker set up is not the same.
    why?
    Wagons don't have rear sway bars coz the shockers and the angle they are installed
    are meant to assist in stopping sway. Their mounts are also on the wrong place
    for use in sedans...
     
  6. magnetvh

    magnetvh New Member

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    Oh bugger. Gota keep lookin for a sedan one round here then. thanks for the info guys.
     
  7. 180sc

    180sc New Member

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    The diff i put in my wagon was a vl 3.45 28 spline that measured exactly the same as a sedan diff and the same went for a vc i used to have it was a sedan with a wagon diff and was lowered with 245/60r14 on 8 inch rims with no scrubbing at all. also all 3 wagon diffs had sway bar mounts on them but the body's had no mounts.
     
  8. ajvx01

    ajvx01 New Member

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    See this is the thing... There's so much confliction with first gens. I was told a psteering k frame was different to manual steer. It's not at all, it all fitted up schmick!
     
  9. SL/ENUT

    SL/ENUT The SL/E Fanatic!

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    [​IMG]
    3.08:1 LSD 10 bolt wagon diff, out of a VH Commodore. As you can see, no rear stabilizer mounting points. Also, the rear shock mounting points. My VB has the sedan points welded on to the area thats normal wagon ones go.
     
  10. Aussie V8

    Aussie V8 New Member

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    Sorry to tell you but they are different. Fitting "up schmick" tells me you have fitted the exact same type that come out of it.
     
  11. ajvx01

    ajvx01 New Member

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    Sorry I don't follow you mate?
     
  12. Aussie V8

    Aussie V8 New Member

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    K-frames between power steer and manual steer in the earlies are different. The fact everything fitted up schmick as you put it says to me that you fitted the exact same type as you took out.
     
  13. ajvx01

    ajvx01 New Member

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    I took out power steer and put in manual.

    I've spoken to a few people who have had the exact same thing and yet I have also seen cases where the frame is different as you say. Hey it all worked for me so I'm happy but it is strange i agree.
     
  14. GypsyNz

    GypsyNz Member

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    Over here the ones with out the sway bars were 4 cylinder diffs, all the 6 cylinder & V8's i've ever seen had sway bars. I used to wreck & fix commodores for a dollar years back, also heard there are 3 different width diffs in the early commodores. I must have been lucky over the years as i never struck a problem......
     
  15. Aussie V8

    Aussie V8 New Member

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    VB, VC-VK, VL.
    VB was about 1 mm wider than VC-VK, VL was wider again. If you have wide wheels/tyres on a pre VL and put a VL diff in it you can get rubbing because its about 10mm wider each side.
    Mounting points between body styles (i.e. sedan-sedan and wagon-wagon) were the same though.
     
  16. SL/ENUT

    SL/ENUT The SL/E Fanatic!

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    I know for a fact VB-VK Salisbury diffs for sedan are same widths, same as wagons. Have measured a VK Borg Warner diff, little bit wider in sedan, not wagons.
     
  17. Aussie V8

    Aussie V8 New Member

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    From the Holden, not Gregory's etc., workshop manual.
    VB Commodore: Tread (Rear)
    8VK69 1417mm
    8VL69 1417mm
    8VX69 1422mm

    VC Commodore: Tread (Rear)
    8VK69 1416mm (Drum)
    8VL69 1416mm (Drum)
    8VK69 1424mm (Disc)
    8VL69 1424mm (Disc)
    8VX69 1422mm

    8VK35 1440mm (Drum)
    8VL35 1440mm (Drum)
    8VK35 1447mm (Disc)
    8VL35 1447mm (DIsc)

    VH Commodore: No entry in the manual so it is no different to the VC.
    VK Commodore: I haven't got a genuine manual on these (yet) but from memory (I did my apprenticeship on these things) there wasn't any difference at all apart from some later VKs come out with the VL type BW.
     
  18. ajvx01

    ajvx01 New Member

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    So what I'm hearing is I can fit a vk wagon diff to my vc sedan?
     
  19. dags061

    dags061 New Member

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    I took out a manual steering rack out of my VH and stuck in a VK powersteering rack.Fits beautiful.
     
  20. Aussie V8

    Aussie V8 New Member

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    You can do anything with money lol. What I'm worried about is you are hearing voices :blah blah:
     

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