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  1. #1

    Join Date
    27 Dec 2019
    Olten, Switzerland
    900 2.0 turbo aero

    Gearbox type (code) for SAAB 900 2.0 turbo S Aero

    Hello everybody

    I have a 900 2.0 turbo (year 1993, engine 2.0 L B202 I4) with gearbox problems. 1st and 3rd gear are very difficult to get into and I have to replace or repair the gearbox.

    According to the code in the engine compartment, a GM45614 is built in my SAAB. I read on various forum posts that a manual gearbox with gearbox code GM55X06 should be installed for a turbo.

    Can an expert give me his opinion on the gearboxes? I have to replace the existing gearbox, should it be a GM55X06 or can I also use a GM45X14?

    If so, how important is position X in the GM45X14 - currently I have a 6 (input gear 31 teeth, output gear 26 teeth). Could it be a different configuration?

    Many thanks for your help,


    Gearbox type (code) for SAAB 900 2.0 turbo S Aero

  2. #2
    Saab Fan
    Join Date
    29 Mar 2015
    Cape Cod Mass.
    2002 95 Aero manual Black, 2001 95 Aero Silver, 1999 Viggen
    Five speed gear boxes all will fit difference being turbo vs. no-turbo.



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