Automatic--->manual transmission swap, possible?
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  • 1 Post By MotownPimp
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2008-2013 Cadillac CTS General Discussion Discussion, Automatic--->manual transmission swap, possible? in Cadillac CTS Second Generation Forum - 2008-2013; as far as i know, there really isn't much mechanical difference between the auto and manual transmission versions of the ...
  1. #1
    joekitch's Avatar
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    Automatic--->manual transmission swap, possible?

    as far as i know, there really isn't much mechanical difference between the auto and manual transmission versions of the CTS, since GM is cheap and likes to re-use everything.

    to that end, would it be (relatively) simple to stick the CTS manual transmission into an automatic CTS? are there significant differences in mounting/electronics/driveshaft attachment that prevent this from happening?

    this is assuming i'm using the RWD automatic for the swap

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  3. #2
    MotownPimp's Avatar
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    Re: Automatic--->manual transmission swap, possible?

    Black'10CTS4 likes this.

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    joekitch's Avatar
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    Re: Automatic--->manual transmission swap, possible?

    well, historically, swapping manual trannies into automatic cars that came with a manual option isn't that difficult....as far as transmission swaps go

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    Re: Automatic--->manual transmission swap, possible?

    That was before the age of computers. I believe that, wiring harnesses, and mounting points and drive shaft will make this project a no go. You would probably be better off finding a MT and trading.

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    tinman's Avatar
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    Re: Automatic--->manual transmission swap, possible?

    Jeezus, why? Just go out and buy one from the factory. No bugs, warranty, and it works.

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    conedoctor is offline Cadillac Owners Connoisseur
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    Re: Automatic--->manual transmission swap, possible?

    Lets face it, yes you could do it, if you have the time and money then rock on but I think to most it is just not worth it.

  8. #7
    arachnyd is offline Cadillac Owners Member
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    Re: Automatic--->manual transmission swap, possible?

    It may not be as expensive as you think, however, manuals are much much cheaper than autos, so frankly, why spend $5k on a swap when You can drop your auto and pick up a manual and make $5k?

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    CTSCHICK is offline Cadillac Owners Connoisseur
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    Re: Automatic--->manual transmission swap, possible?

    My b.f. does auto to manual and manual to auto swaps on cars so I end up having order his parts.
    There is a lot more to it than just swapping transmissions.
    Pcm has to be re-flashed for a manual including matching the vin# , reverse switch, clutch switch wiring, sometimes trans mounts and cross members, pedal assemblies, master/slave cylinder, clutch, pilot bearings ect,ect.
    I forget what else.

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    Re: Automatic--->manual transmission swap, possible?

    Quote Originally Posted by CTSCHICK View Post
    My b.f. does auto to manual and manual to auto swaps on cars so I end up having order his parts.
    There is a lot more to it than just swapping transmissions.
    Pcm has to be re-flashed for a manual including matching the vin# , reverse switch, clutch switch wiring, sometimes trans mounts and cross members, pedal assemblies, master/slave cylinder, clutch, pilot bearings ect,ect.
    I forget what else.
    well, yeah. that's true for all tranny swaps
    but some are much harder than others due to wildly different mounting, hookups, ect.

  11. #10
    99flhr is online now Cadillac Owners Enthusiast
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    Re: Automatic--->manual transmission swap, possible?

    I would rather have a root canal and a colonoscopy on the same day than make this swap. JMO Good luck with your project.

  12. #11
    conedoctor is offline Cadillac Owners Connoisseur
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    Re: Automatic--->manual transmission swap, possible?

    I would think it would also kill the resale value for the average buyer, even if done right if people pull the Vin and see it is an auto questions will be asked.

  13. #12
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    Re: Automatic--->manual transmission swap, possible?

    Quote Originally Posted by 99flhr View Post
    I would rather have a root canal and a colonoscopy on the same day than make this swap. JMO Good luck with your project.
    On the same day; I'd really have to think about that one.
    99flhr and EVH5150 like this.

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    Re: Automatic--->manual transmission swap, possible?

    Quote Originally Posted by C "T" ess View Post
    On the same day; I'd really have to think about that one.
    Tune up at both ends
    tinman, C "T" ess and EVH5150 like this.

  15. #14
    EVH5150's Avatar
    EVH5150 is offline Cadillac Owners Fanatic
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    Re: Automatic--->manual transmission swap, possible?

    LOL!

    Nothing like a good clean ass hole!
    Quote Originally Posted by joekitch View Post
    Tune up at both ends


    ----------

    LOL!

    That's what I'll say to my wife; "Baby I think I'll give you a tune up at both ends". Wink, wink.
    Quote Originally Posted by joekitch View Post
    Tune up at both ends

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