504 Ti Gearbox Change
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  1. #1
    1000+ Posts Pug_405_Mi16's Avatar
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    504 Ti Gearbox Change

    All,

    I have a 504 Ti which I have just recenty aquired.

    I think it's a top car and it perform's and handles like a DREAM !

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    BUT I have one complaint, with the standard 4 speed box it revs quite hard on highway driving, so I was thinking it might be a good use for the spare BA10/5 box I have here *came out of an early model 505 GR*

    So the question is will this work and if so is it an easy or hard job ?

    Cheers

    Ben
    1989 Peugeot 405 Mi16
    1990 Peugeot 505 GTD Turbo Wagon
    2000 Peugeot 306 XSI
    1973 Peugeot 504 GL





  2. #2
    1000+ Posts Pug_405_Mi16's Avatar
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    Or would it be a BA7/5 ??

    Sorry...Ben
    1989 Peugeot 405 Mi16
    1990 Peugeot 505 GTD Turbo Wagon
    2000 Peugeot 306 XSI
    1973 Peugeot 504 GL





  3. #3
    Guru davemcbean's Avatar
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    Ben,

    If it is indeed an early 505 GR, then it should be a BA10/5, unless somebody has previously changed it.

    Either gearbox is easy to fit to a 504. It is a good idea to modify the gearshift mechanism (see the thread on 505 big bore exhaust manifolds in the parts section), which shortens the gearshift throws and puts less stress on the gearbox. A late model 504 gearshifter (that mounts on the body) might make the conversion a little easier.

    To tell if you have a BA10/5 or BA7/5, look on the back of the gearbox. If it has a round plastic plug, it's a BA7/5. If it has a triangular plate with 3 bolts or screws, it's a BA10/5.

    Do get you speedo correct you may have to use the 505 4.11:1 diff, or alternatively you could fit lower profile tyres, or you could have your speedo recalibrated, or you can fit a small speedo correction gearbox in your speedo cable (requires cutting the cable).

    If it's a BA10/5 use atleast 50% Mobil 1 oil in it to improve the gearshift feel.

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  4. #4
    Guru davemcbean's Avatar
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    [quote]Originally posted by davemcbean:
    <strong>

    Do get you speedo correct you may have to use the </strong><hr></blockquote>

    Sorry, that should have been "To get your speedo correct...".

    Also, you can check my website out to see pictures of the various gearboxes.

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

  5. #5
    Gone Fishin' Ray Bell's Avatar
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    I think going for the 4.11 rear end would be the wrong thing to do. It's clear that the intention is to cut the revs, so why not keep the original four ratios (approximately) and get an overdrive?

    With my wagon, usually with a trailer in tow, the TI engine and 5-speed box match nicely with the 4.11 rear end... but it's much heavier.

    How does the spigot work out on that model, David? Might he need the later link tube?

  6. #6
    Guru davemcbean's Avatar
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    [quote]Originally posted by Ray Bell:
    <strong>How does the spigot work out on that model, David? Might he need the later link tube?</strong><hr></blockquote>

    Ben,

    Sorry I forgot about something. Yeah you'll probably need a later link tube (I think post-1977, the model that has the big gear knob).

    Dave
    NZ Fleet
    1976 504 Ti
    1984 205 GT twin carb
    1991 205 SI 1.6GTI motor
    1994 106 Xsi
    1996 Mondeo V6
    Aus Fleet
    1955 203C
    1997 Civic Cxi (great allrounder- revy, flexible, nimble, comfortable , economical, simple and durable )

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