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Thread: Question on transaxle 901.101.301.OR #103585

  1. 10-21-2015, 08:50 PM #1
    syncrocrick
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    Question on transaxle 901.101.301.OR #103585

    Hi!

    First time posting here - my name is Christian, I live in the Bay Area and I recently acquired 2 Porsche 912, an engine and transmission as part of a package deal.

    I have started participating in the 912 forum but it seems like the transmission I got could possibly be from an early 911S - hence my question here.
    I hope this is the right section.

    Is it possible to confirm if this is indeed a transmission from a 911S, or a regular 911? Is there anything specific I should know about it?









    thank you very much!
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  2. 10-21-2015, 10:08 PM #2
    preS
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    Yes it's from an early 1967 911S

    Richard
    searching for engine (case) 903742
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  3. 10-21-2015, 10:21 PM #3
    Jon B
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    Quote Originally Posted by syncrocrick View Post
    Is it possible to confirm if this is indeed a transmission from a 911S, or a regular 911? Is there anything specific I should know about it?
    Yes Christian, by the numbers that is a 1967 911S transmission.
    It can be used in a 912 prior to '69 if the axle flanges match the axles, and the front mounting hardware is changed. The 5th gear ratio will be taller than standard for a 912.

    Jon B.
    Vista, CA
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  4. 10-22-2015, 06:49 PM #4
    syncrocrick
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    thank you guys - I appreciate the quick answer. The 912 is a 1967 indeed so I guess it will be a good fit for that car.
    I may want to get it checked/serviced before though.

    Any suggestion for a good shop in the Bay Area?

    thank you!

    Christian
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  5. 10-22-2015, 08:59 PM #5
    Jon B
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    Quote Originally Posted by syncrocrick View Post
    I may want to get it checked/serviced before though... Any suggestion for a good shop in the Bay Area?
    Christian, there should be several good independent Porsche shops in the area that can service a 901 transmission.
    A basic service would include disassembly & inspection, replacing any bearings, synchros or shift parts as necessary, adjusting the shift forks and re-sealing the transmission.
    You will need a specialist if the ring & pinion needs set-up or replacement, if you're re-casing the transmission or replacing the differential.
    Someone on the board can recommend a local shop that specializes in early Porsches.

    Jon B.
    Vista, CA
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  6. 10-22-2015, 10:31 PM #6
    Jon B
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    PS- You will sometimes hear people recommend a Porsche shop by saying "they have all the factory tools" which is usually complete BS.
    If a shop makes that claim about Porsche transmission work, they should have no problem bringing you into their service area for 5 minutes, opening the manual and showing you the necessary tools & instruments.
    If they act insulted that you don't trust them, and cannot spend a few minutes with you, then just thank them and walk away.

    Jon B.
    Vista, CA
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  7. 10-25-2015, 07:46 PM #7
    TeeItUp
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    One shop to consider is RMG Enterprises in Sunnyvale. Ask for Bob Grigsby (408-738-2060). He used to own a '67 912 and they service a lot of air cooled cars.
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  8. 10-30-2015, 12:48 AM #8
    Neil '67 911S
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    Christian;

    Jon B. happens to be one of the best and he has been building and servicing Porsche transmissions for many years. Completely trustworthy.
    - Neil
    '67 911S (Ol' Ivory)
    '82 Hewlett Packard 34C
    Early 911S Registry # 512
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