S4 vs S5 Transmission...
#1
35r 13b first gen
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S4 vs S5 Transmission...
can anyone say whether the s4 or s5 tII tranny fits better into a 12a 1st gen with a stock manual tranny? just seeing which one will require less modifications with the x member.
thanks
thanks
#3
FB=OS Giken LSD
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I'm not sure about the 12a, but in my 13b, the cross member just had to be drilled for the S4. I later swapped in an S5 but kept the tail from the S4 as I was already set up for it.
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#9
If you are using a NA FC trans (either S4 or S5) you should be able to just swap a FB tail shaft on and be done with it.
If we're talking T2 then the S4 is a bit more straightforward, since the bottom of the S4 tail shaft housing has a flat mounting surface like the FB does. The S5 has angled mounts and are just generally harder to work with (in my opinion anyway) In either case however at least some modification will be needed as the FB mount will not just bolt right up to the S4 tail housing...
Not sure how clear that was, pics would probably help explain it better...
If we're talking T2 then the S4 is a bit more straightforward, since the bottom of the S4 tail shaft housing has a flat mounting surface like the FB does. The S5 has angled mounts and are just generally harder to work with (in my opinion anyway) In either case however at least some modification will be needed as the FB mount will not just bolt right up to the S4 tail housing...
Not sure how clear that was, pics would probably help explain it better...
#10
What's that smell?
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I'll try and assist with what 82transam is saying with a picture-here is a 12a mount with the holes elongated to mate up with an S4 box.
![](http://i599.photobucket.com/albums/tt79/captainbizzaro/31f96db4.jpg)
As said before the S5 mount is very different so harder to alter.
![](http://i599.photobucket.com/albums/tt79/captainbizzaro/31f96db4.jpg)
As said before the S5 mount is very different so harder to alter.
#12
If you are using a NA FC trans (either S4 or S5) you should be able to just swap a FB tail shaft on and be done with it.
If we're talking T2 then the S4 is a bit more straightforward, since the bottom of the S4 tail shaft housing has a flat mounting surface like the FB does. The S5 has angled mounts and are just generally harder to work with (in my opinion anyway) In either case however at least some modification will be needed as the FB mount will not just bolt right up to the S4 tail housing...
Not sure how clear that was, pics would probably help explain it better...
If we're talking T2 then the S4 is a bit more straightforward, since the bottom of the S4 tail shaft housing has a flat mounting surface like the FB does. The S5 has angled mounts and are just generally harder to work with (in my opinion anyway) In either case however at least some modification will be needed as the FB mount will not just bolt right up to the S4 tail housing...
Not sure how clear that was, pics would probably help explain it better...
#13
Thanks for the pic captainbizarro! I actually have an S5 box in my T2 Fb right now and the mount is cobbled together at best... Came across a scrap S4 T2 box a few months back and I'm planning to swap its tail shaft housing onto my trans at some point soon so I can neaten the mount up...
If anyone is still confused what we're talking about I can try to get some pics tomorrow...
If anyone is still confused what we're talking about I can try to get some pics tomorrow...
#20
35r 13b first gen
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So if i get the s4 tII tranny and bolt it up to my 12a can i use the stock 12a flywheel with a tII clutch? Then just use a tII starter and slave? are the diameters different from 12a na clutch to 13b t clutch?
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difference, fb, fc, mating, na, rx7, s4, s5, t2, tailshaft, tranny, trans, transmission, transmissions, turbo