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Thread: Transmission mount question

  1. #1
    Senior Member Chris Pomares's Avatar
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    Transmission mount question

    I bought this thinking it was a NOS 65-71 901/911 transmission mount. The number on the bag is correct, but the mount is something else. The holes are 75 mm wide and 50 mm deep. What is it? A 915 or 901 Sporto?
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    1959 Auratium Green 356A Super w/ Rudge wheels
    1970 Irish Green 914-6 w/2.2S
    Current -1967 Bahama Yellow 912 POLO 2cam4 #1
    www.reSeeWorks.com
    Personalized Vintage Porsche's and parts
    I couldn't find the sports car of my dreams, so I built it myself-Ferdinand Porsche

  2. #2
    According to Porsche that fits 1969-71 pressure cast transmissions.

    Earlier part number is a 901 305 031 02 for "chilled" cast transmissions.

  3. #3
    Senior Member Chris Pomares's Avatar
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    The case is out of a 69 912. 902/16. I have 2 other mag case transmissions. One in my car and one for a friends car. Those are 69 also and this mount doesn't fit them either. I think this is for a sportmatic. The holes are offset like the one I have.


    https://www.ebay.com/itm/11389339795...EAAOSwj35dgir3
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    Last edited by Chris Pomares; 05-13-2021 at 03:31 PM.
    1959 Auratium Green 356A Super w/ Rudge wheels
    1970 Irish Green 914-6 w/2.2S
    Current -1967 Bahama Yellow 912 POLO 2cam4 #1
    www.reSeeWorks.com
    Personalized Vintage Porsche's and parts
    I couldn't find the sports car of my dreams, so I built it myself-Ferdinand Porsche

  4. #4
    Quote Originally Posted by Chris Pomares View Post
    The holes are 75 mm wide and 50 mm deep. What is it? A 915 or 901 Sporto?
    Chris, it appears to be an early 930 front mount.
    I say "appears" only because I don't have a 930 front cover here to confirm the dimensions.

    The 901, 902, 911, 915 and Sporto mounts all have trapezoid-shaped fastener patterns.

    Jon B.
    Vista, CA

  5. #5
    Quote Originally Posted by Chris Pomares View Post
    I think this is for a sportmatic. The holes are offset like the one I have... https://www.ebay.com/itm/11389339795...EAAOSwj35dgir3
    The same eBay seller in your link also has a 905 Sporto front cover and a complete transmission, and the mount fastener patterns are obviously different...

    https://www.ebay.com/itm/12385159071...UAAOSwNCtdO1~H
    https://www.ebay.com/itm/11233166060...wAAOxyP4dTcg6f

    Jon B.
    Vista, CA

  6. #6
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    Quote Originally Posted by Jon B View Post
    Chris, it appears to be an early 930 front mount.
    I say "appears" only because I don't have a 930 front cover here to confirm the dimensions.

    The 901, 902, 911, 915 and Sporto mounts all have trapezoid-shaped fastener patterns.

    Jon B.
    Vista, CA
    Just had a look at my 3lt turbo.
    Hole measurements are same.
    Do you have a pic of underside Chris?
    S Registry#2021

  7. #7
    Senior Member Chris Pomares's Avatar
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    From, Jon B
    The 901, 902, 911, 915 and Sporto mounts all have trapezoid-shaped fastener patterns.

    Mine have the trapezoid pattern.
    Maybe I should ask on the Pelican Parts site. There are some turbo folks over there.

    I got a response back from Pelican also. 3 liter Turbo.
    Thanks to both of you!
    Last edited by Chris Pomares; 05-14-2021 at 11:56 AM.
    1959 Auratium Green 356A Super w/ Rudge wheels
    1970 Irish Green 914-6 w/2.2S
    Current -1967 Bahama Yellow 912 POLO 2cam4 #1
    www.reSeeWorks.com
    Personalized Vintage Porsche's and parts
    I couldn't find the sports car of my dreams, so I built it myself-Ferdinand Porsche

  8. #8
    That’s a 930 mount.

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