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Thread: Trans Segment Swap?

  1. #1
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    Default Trans Segment Swap?

    I am still a novice at this so please speak slowly and use small words.

    I am working with a 2001 Silverado 5.3L that is being swapped into a project. I want to tune it for a manual tranny (or non-electronic automatic, however you prefer to think of it). I am aware of the need to swap the transmission segment in the pcm from an auto to a manual but that's were my problem starts. For an LS1 this is easy, just go to tunefiledepot and grab the file. However there are no tunes listed for a manual transmission Silverado, period. The 6.0L was available with an nv4500 5 speed and the 4.8L could have had an nv3500 5 speed, but even they aren't listed there. As most of you probably know the 5.3L NEVER had a manual transmission behind it from the factory...ever (at least not in the North American market). So what do I do, what file should I try to rob the trans segment from? Or am I going to have to just go in and manually configure everything? I know there are many 5.3s out there in old vehicles that are tuned for non-electronic transmissions so I know it's possible, I'm just too dumb at the moment to figure it out. Please help.
    Last edited by LS-SWAPPER; September 13th, 2012 at 12:41 PM.

  2. #2
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    Nobody? Is there a better place for me to ask these questions?

  3. #3
    Joe (Moderator) joecar's Avatar
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    Like you observed, it is going to be impossible to find a truck manual trans segment with the same matching OS id as your require.

    Manually configuring/edit the trans segment is not sufficient as the the segment contains "invisible" stuff that we can't edit.

    You might want to start with a 2001/2002 Camaro/Firebird manual trans file, and copy your tables into it...

    (but if you have DBW then the field has narrowed down to practically zero again).

  4. #4
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    Thanks joecar. This engine is dbc so I am safe there. This is a 2001 with the 12208322 OS, so you are saying I should start with the 12202088 OS from tunefiledepot and modify it from there? When you say "copy your tables into it", are you saying I will have to change EVERY table or just the Main VE and a few others? I have never done anything that involved, time to do some more research. Again sorry for the dumb questions, and thank you for the response.

  5. #5
    Joe (Moderator) joecar's Avatar
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    Try the 2002 Camaro manual trans 12212156 file.


    You need to copy all the tables in your current tune file that make your engine run how it runs now.

  6. #6
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    Ok, but to satisfy my need to learn, why??? What makes you choose that file over the one I mentioned from the 2001 camaro?

  7. #7
    Joe (Moderator) joecar's Avatar
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    It being later (2002) than the other (2001) I'm assuming it will have some fixes introduced by GM... just my opinion.

    If you like 12202088 then use that one.

  8. #8
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    Ahh, that makes sense. Just trying to understand the logic, I'll give 12212156 a try. THANKS AGAIN!

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    Laying in bed last night I had another though. Tunefiledepot doesn't have a 6.0 or 4.8 file for a manual tranny, but I have a complete untouched 6.0 from a 2000 truck in my shop that originally had a manual. Which would be the better choice, start with the manual camaro file like was mentioned earlier or start with the manual 6.0 tune that I have access to? Once again, just trying to learn the logic behind some of this. Thanks.

  10. #10
    Joe (Moderator) joecar's Avatar
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    Either way is good as long as the OS id match across tune files.

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