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Stock vs Hurst shifter

This is a discussion on Stock vs Hurst shifter within the Manual Transmission forums, part of the Drivetrain category; Is there a way to know it the tranny has been rebuilt? Like some number on the tag? The sealant ...

  1. #21
    Member tici's Avatar
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    1998 M6 vert TA

    Is there a way to know it the tranny has been rebuilt?
    Like some number on the tag?
    The sealant between the different case parts looks like a black RTV (if this helps).
    The tranny is a 97 Borg Warner (it's stamped somewhere).

    Maybe I'm worrying too much... but I never tried another manual F-body 'cause they are pretty rare over here.

  2. #22
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    If it is original, it has paper/ organic linings. There is a tag under one of the case-to-extension housing bolts( it may be color-coded). It should have several number sets on it.
    1386-XXX = model.
    6 character julian date code.
    GM part number.
    serial number.

  3. #23
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    1998 M6 vert TA

    Quote Originally Posted by 30thbird
    If it is original, it has paper/ organic linings. There is a tag under one of the case-to-extension housing bolts( it may be color-coded). It should have several number sets on it.
    1386-XXX = model.
    6 character julian date code.
    GM part number.
    serial number.
    How do I know what it is or if it has been rebuilt?
    The "Borg Warner" name and production date is part of the casting and not stamped.
    Is the model number or the julian date that derminates what it is?

  4. #24
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    Any ID cast into the exterior is a casting part reference only.
    An LS1 Fcar T56 is a 1386-000-020 w/Hurst, -017 w/std
    The GM number is 12552099 for the 017, 12561561 for the 020
    The build date code will start with a letter for the month( I is not used) the next two digets are the day and the last two are the last diget of the year and the shift produced. Below this code is the serial number. All of this is stamped on a metal tag bolted on the extension housing flange.
    The original RTV is a black product. Any other colored RTV indicates repair/ rework.

  5. #25
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    1998 M6 vert TA

    here my tag (which is blue)
    12552099 M0173
    13-86-017 E16106
    The RTV is black and looks original

    So... What is the year? Sorry but I don't understand.

    Thanks! Stefano

  6. #26
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    O17 non-Hurst model built 01Dec. 1997, 3rd shift.
    The E is the change letter for the model and 16106 is the serial number.
    Last edited by 30thbird; 04-20-2006 at 06:04 AM.

  7. #27
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    1998 M6 vert TA

    so in terms of synchro rings: old style, isn't it?

    so far it shifts good, a little notchy depending on temperature and RPM, sometime it takes a moment to be able to insert the gears. I guess it's normal
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    Yes , it has the organic/paper-lined blocker rings and an aluminum 3/4 fork. Actually, the older rings produce a smoother shift feel.If you don't beat on the car, you can get good service the way it is. My 99 is as original and operates well. I have easy access to the upgrade parts and the resource to install them but I prefer the feel of the older parts and choose to leave it as is.

  9. #29
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    1998 M6 vert TA

    How do newer parts feel? Because they are "new" I can imagine they are better...

    I don't beat on it: to shift I apply a moderate pressure to allow the synchro rings to align the gears, than the tranny will "shift by itself". This takes up to a second but I think it's the best way to shift.

    Why force it? I'm not racing

  10. #30
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    The new parts are more durable. That is they will take more abuse/ survive more abuse. The trade off is in the shift feel They produce a more grabby/ notchy shift feel. Since you do not drive with maximum capacity demand, you would not require the benefit of the carbon-particle parts. AND you can enjoy a smoother shift.

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