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How do I fit a MT75 2wd gearbox to a 24v V6 Cosworth lump?

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Old Apr 27, 2007 | 08:24 PM
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Default How do I fit a MT75 2wd gearbox to a 24v V6 Cosworth lump?

Hi
I have a mk1 3 door sierra which has a 24v granada cosworth engine in. Ive decided to fit a Mt75 box in place of the type 9 as i have just blown the type 9 up.
ive baught a 2wd mt75 gearbox which came out of a granada 2.9 and has had the shaft replaced so it will fit my engine.

Does anyone know what clutch and flywheel setup i need to use?

I have a 2wd 6 paddle clutch which was previosly used with the type 9 that is like new. so i was hoping to use this if possible.
Also ive been told i will need to change the speedo drive in the gearbox does anyone know what i should replace it with?

Any help at all would be much appreciated. A I need to get this car on the road by Monday.
Thanks.
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Old Apr 28, 2007 | 09:46 AM
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if anyones intrested i found that i need a
2.9 flywheel
2.9 clutch and plate
and i can use a 2wd dohc sierra propshaft.
and im hoping i can use the same speedo connection.
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Old Apr 28, 2007 | 06:48 PM
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today ive managed to get all the bits i need together.

though im still not sure wheather to use the 2wd cossie 6paddle clutch or use the organic one which is made to go on the MT75 xr4x4 box i have.

Both are brand new, and i would rather use a 6 paddle clutch, although
ive been told that if i use a 6 paddle cossie clutch i will have a shaking noise on tick over. Someone else has told me ill have that noise what ever i do because of the conversion. And other people have told me it wont be a problem at all.

looking at the clutch plates they are both the same size but in the centre of the 6 paddle cossie clutch there are 6 springs and on the centre of the xr4x4 clutch there are 4 springs on one side and some more i think on the other side.
i really don know what to do as im not sure if the XR clutch will be up to the job and i dont know if the cossie clutch will not work properly.
Has anyone had any experiace with this?
thanks
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Old Apr 28, 2007 | 08:28 PM
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my xr clutch lasted 4 months .....the escos big turbo clutch has been in for 16 months and is beginning to wear.... it rattles a bit all the time which it has done since fitting.... mine is 4x4 with the mt75...
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Old Apr 29, 2007 | 05:13 PM
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thanks for your Reply Mick, is it a loud noise or barely noticeable?
I went to fit mine today and realized i had the wrong clutch arm
I didnt realize the type 9 one was different from a mt 75 one looks like i need to find myself a clutch arm for an MT75 now.
anyone know if i need a 4x4 one or a 2wd one?
or are they both the same? managed to find a 2wd cossie one today but found they were the same as what i had anyway!
gotta try and find myself a clutch arm tomorow as ipromisedmy mate id have it out of the garage by monday.
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Old Apr 29, 2007 | 07:39 PM
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its very noticeable............. ask anyone who has heard my car... as for the arm i'm not sure. i run 4x4 so i could say you need a 4x4 one but www.fordpower.org.uk are probably your best bet...for the 24v info
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Old May 1, 2007 | 08:17 AM
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Thanks.
I think ill just put the standard clutch in then. I hope it lasts longer than yours though mate!

I managed to get hold of the mt75 2wd clutch arm which seems to fit on the box fine, (they just mount on in a different way to the type 9 one). so there should be nothing to stop it all going together now
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