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Thread: What F23 boxes will fit a LET?

  
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    Enkidu's Avatar
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    What F23 boxes will fit a LET?

    Ok I think i'm in need of an F23 box, mines rattling and sounds pretty mashed.

    Was thinking about gear ratios etc, I wouldn't mind a longer 5th. This was found in a diesel box wasn't it?

    Question is, what F23 boxes will fit my car?

    http://cgi.ebay.co.uk/ASTRA-98-04-F2...QQcmdZViewItem
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    spudrico's Avatar
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    when i was looking around for an F23 box any F23 box will fit the LET engine as so long its an astra F23 box

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    Why not upgrade to an M32.
    Alternatively have a look in the for sale section, Turbo Chris is breaking 2x SRi Turbo;s. The 2.2 box wont fit as the starters on the other side.

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    Quote Originally Posted by DaveDempsey View Post
    Why not upgrade to an M32.
    Alternatively have a look in the for sale section, Turbo Chris is breaking 2x SRi Turbo;s. The 2.2 box wont fit as the starters on the other side.

    I'd love to upgrade to the M32 but does it fit a LET engine?? Everyone i've seen thats done this has had a VXR engine too and they are hard to come about with all the extras I need etc.

    But can you get them?

    F23 for cheapness.... But how much more would the M32 be as its not only that which I would have to buy. I'd need linkage, shafts, flywheel, clutch.... All adding up and i've only just fitted my clutch and flywheel, typical eh?
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    Will fit on a let no problem. Try the likes of Vauxhall Performance Spares Centre for a box & speak to GMAN about total cost & fitting etc. He;s not far from you either. Sods law though that you do a clutch and flywheel then the box ****s up. God has a warped sense of humour.

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    What do people do with the shafts to fit mate? I heard welding, is that right?
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    Sounded pretty much like Rocking horse shit after phoning them

    He said its about 800 for the box usually... Bit more than I'd like to pay to be honest, I could prob get mine rebuild with new bearings and quaife for 1100 inc labour.


    Ok cheers for ya help... I'll chat to regal tomorrow.
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    No welding for shafts. £800 is about £3-400 over priced imo.
    Plenty F23 boxs around though. Quaiffe is well worth the money though.

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    The M32 dose fit no probs on a Z20let
    I am fitting one on my car some time
    I might have a Kit of parts to fit a M32 some time in the next week if thats any good

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    montyfox's Avatar
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    Apparently the gearboxes from the Zaf GSI and the VX220 turbo offer slightly higher gearing in top. 25.9mph per 1000 RPM in top gear as opposed to 24.7mph per 100 RPM in the Astra GSi.

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