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s4 - s5 trans differences

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Old 11-21-08, 02:35 PM
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s4 - s5 trans differences

Ok, I am doing a manual swap on my 929.. It suggests to use a s5 box, but I have a s4 Tii box from my last project.

I searched and found a few threads, but nothing conclusive. So I figured I would post to find out.

Basically what I want to know if there are any mounting differences or outter deminsion differences, that way I will not run into any issues while doing my trans swap.

Thanks in advance,
-Mike
Old 11-21-08, 02:51 PM
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Well, a TII and an N/a trans have big differences, but between the series I don't think there are many differences.
Old 11-21-08, 03:06 PM
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for a 929 I assume it would probably be a TII trans (they're beefier), so there aren't any differences that I know of. there might be some small gearing changes.
Old 11-21-08, 03:15 PM
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How the trans crossmember mounts to the trans is different between series.
Old 11-21-08, 04:25 PM
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^ ok so I for sure need a s5 trans? Or is there a way to run s4 mount an a s5 crossmember, or vica versa?
Old 11-21-08, 04:26 PM
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Nope, crossmember has to match the trans but the trans doesn't have to match the car in FC's.
Old 11-21-08, 04:42 PM
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Im not exactly sure if we have the crossmember in common, I will take a look when I get my 929 one. And compare it to that of a s5 fc, if they are the same mounting points I guess I could use a s4 crossmember and s4 trans correct?
Old 11-21-08, 04:46 PM
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All of the crossmembers for manual transmissions mount in the same place on the FC chassis. They're just specific to the transmission itself.
Old 11-21-08, 04:47 PM
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Well thats pretty much what I assumed, I just dont know if a fc one will fit in my 929.
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