318i Auto gearboxes 3 speed to 4 speed

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AusE30
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Post Sun Sep 03, 2006 8:18 pm

Hi
I have a 1984 318i with a 3 speed Auto zf gearbox, I have been offered a 4 speed Auto 4hp22 from a M40 318i for free and i'm wondering if it is a straight swap over without modifications?
Thanks
Aaron
smithy318i
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Post Sun Sep 03, 2006 9:08 pm

I wouldnt have thought the M40 gearbox would fit your M10.
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m-dtech
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Post Sun Sep 03, 2006 9:46 pm

although, the m10 is basicaly same as an m30 allbeit less 2 cyls so might be same bolt pattern.

length/dimension of the box & prop is more likley a problem