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T56 MidPlate differences?

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Old Jul 13, 2020 | 12:32 PM
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Default T56 MidPlate differences?

I'm trying this again 😅
So does anyone have any info as to the differences from the ls1/gto t56 midplate to the CTS V t56 midplate?

I tried doing a cts v to fbody conversion and the gto shift rail is too short wondering if anyone could help out as to why😔
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Old Jul 13, 2020 | 12:35 PM
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The gto shiftrail is the same as the f body. The only thing thats different us the shifter and tge cup offset. Swap cups and it fits fine. You sure you dont have the rail from a ctsv with the tr6060 style divorced shifter?
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Old Jul 13, 2020 | 01:05 PM
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Originally Posted by Twin_Turbo
The gto shiftrail is the same as the f body. The only thing thats different us the shifter and tge cup offset. Swap cups and it fits fine. You sure you dont have the rail from a ctsv with the tr6060 style divorced shifter?

Thanks for replying,
No sir I for sure bought the GTO shift rail here is a screen shot.
I called Hawks motors ports and they're saying there is a difference between the two front plates. But from what I read on the forums it's just a difference of a 1/2 inch of the input shaft that requires a different pilot bearing
Nothing about the shift rail though😔
The transmission came out of a 05 cts V gen 1

So all I have to do is use the offset shifter cup(which I already ordered on the way)?
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Old Jul 13, 2020 | 04:06 PM
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Your transmission internal shift rail assembly parts are not completely assembled, and this is leading to them being incorrectly assembled.

Location of the main rail is set by the mid-case detent lever you're missing. Detent position (1,3,5,R or N or 2,4,6) is set by the spring and ball and guide plate under this piece in the T56 line *except the CTS-V and some later T56 Vettes.*

if you're going to copy an operating mechanism, you have to use all relevant parts; see above list. The CTS-V spring up front can be re-used and the ball, plate, and maybe detent lever need acquired.

I highly recommend you work with a competent vendor who didn't copy-paste their T56 business from a real builder.
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Old Mar 1, 2026 | 12:16 PM
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Default F body T56 midplate to fit to a CTV-S T56

jdm,
what do I need to do with my Camaro T56 midplate to use it on a 05 CTV-S T56 transmission. My T56 plate has been modified to fit to a british ar b ell housing?

Thanks

Originally Posted by jmd
Your transmission internal shift rail assembly parts are not completely assembled, and this is leading to them being incorrectly assembled.

Location of the main rail is set by the mid-case detent lever you're missing. Detent position (1,3,5,R or N or 2,4,6) is set by the spring and ball and guide plate under this piece in the T56 line *except the CTS-V and some later T56 Vettes.*

if you're going to copy an operating mechanism, you have to use all relevant parts; see above list. The CTS-V spring up front can be re-used and the ball, plate, and maybe detent lever need acquired.

I highly recommend you work with a competent vendor who didn't copy-paste their T56 business from a real builder.
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Old Mar 3, 2026 | 11:23 AM
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Originally Posted by whitetrooper
jdm,
what do I need to do with my Camaro T56 midplate to use it on a 05 CTV-S T56 transmission. My T56 plate has been modified to fit to a british ar b ell housing?

Thanks
Read three times:
https://www.eecis.udel.edu/~davis/z2..._Fbody_T56.pdf

Start your own thread. Explain why you're wanting to do X part with Y mid plate and if you're keeping the rear of the trans. as stock.

I can't tell which plate is modded.

New replacement plate and GTO plate has a longer shift rail pocket than the Camaro plate.
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