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Technical Dynaflow transmission

Discussion in 'The Hokey Ass Message Board' started by Colton Bates, Jan 6, 2020.

  1. Colton Bates
    Joined: Feb 8, 2019
    Posts: 33

    Colton Bates

    Does anyone know if there is away to run a dynaflow transmission with a open driveshaft?
     
  2. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    IIRC, the ‘61/‘63 era Buick’s had open driveline Dynaflows.....

    Ray
     
  3. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,403

    302GMC
    Member
    from Idaho

    Find a '53 Cad or Olds built right after the hydro plant burned down. They have everything you need.
     
  4. Colton Bates
    Joined: Feb 8, 2019
    Posts: 33

    Colton Bates

    I have a good 59 dynaflow and I was curious if I could possibly use it in a model a
     
  5. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    I don’t know of a simple solution to your dilemma. Converting your Dynaflow to open driveline can probably be done, but I think it likely a lot of machine work would be required. Finding an open drive unit from an early ‘60s model might be easier.

    Alternatively, shortening a Buick torque tube driveline to fit your chassis is also a possibility, though I hesitate to recommend that approach for more than one reason.

    In my opinion, you would be better served by buying an adapter to mate your Buick engine to a popular GM automatic from the ‘70s up, such as a TH350, TH400, etc.

    Ray
     
  6. I worked in 2 different wrecking yards in the late '50's, and have been building cars since then. I have yet to see one of these cars although I have heard about them for 60 years.
     
    VANDENPLAS and Hnstray like this.
  7. 302GMC
    Joined: Dec 15, 2005
    Posts: 8,403

    302GMC
    Member
    from Idaho

    There's a Cad Coupe DeVille in Rockland, Idaho, population about 200, still running & never been apart. I've seen 2 Olds so far - a Super 88 and a 98.
     
  8. Colton Bates
    Joined: Feb 8, 2019
    Posts: 33

    Colton Bates

     
  9. Colton Bates
    Joined: Feb 8, 2019
    Posts: 33

    Colton Bates

    It's a shame that I can't find a way to use it easily, and unfortunately I don't have the torque tube and rear end.
     
  10. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    I first thought about this too, but the post below summarizes my second thought....

    I haven’t had quite as much exposure as you describe, but in the 60 plus years I have been a very active auto nut and salvage yard explorer, I too have yet to discover one of these puppies..

    :D maybe they ALL got shipped to the hinterlands, where the rubes wouldn’t be expected to know the difference.....

    Ray
     
    BJR and choffman41 like this.



  11. Not really a shame.
    I had one in my 55 Buick behind the nailhead. While it worked fine, it didn’t set my pants on fire either.
    Parts are silly expensive and they changed them every few years improving them throughout.
    So a lot of stuff from early to late 50’s dynaflows don’t swap and interchange.
    They are also a weepy leaky transmission.

    the torque tube is a big honking mother of a beast better suited to a 1 ton truck then a car.

    with all that said, my 55 drove great, I loved the car, but ultimately sold it due to a leaky dynaflow and my unending need to be lazy and not fix it !
     
  12. Elcohaulic
    Joined: Dec 27, 2017
    Posts: 2,213

    Elcohaulic

    Maybe change direction and go with a hydro...
     
  13. Gman0046
    Joined: Jul 24, 2005
    Posts: 6,256

    Gman0046
    Member

    A Dynaflow would be my last choice. Too many other better choices. Saw a 55 Buick for sale a while back with a 401, open drive and a 700R4.
     
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  14. studebakerjoe
    Joined: Jul 7, 2015
    Posts: 1,174

    studebakerjoe
    Member

    While I agree with most in that I'd pick a different transmission, Chet Herbert had a 32 sedan with a GMC 6 and a Buick Dynaflow adapted to a Ford closed rear so it is doable.
     
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  15. Gman0046
    Joined: Jul 24, 2005
    Posts: 6,256

    Gman0046
    Member

    Anything is doable. Whats the most practical is the real story. Like I previously posted, a Dynaflow would not be my choice.
     
    Truckdoctor Andy likes this.
  16. studebakerjoe
    Joined: Jul 7, 2015
    Posts: 1,174

    studebakerjoe
    Member

    Gman, I agree. I don't think they have the best reputation. Now if he'd said a dual range Hydro I'd say why not , but yeah today there are so many options with pretty much all of them being better than the Dynaflow.
     
    Truckdoctor Andy likes this.
  17. BJR
    Joined: Mar 11, 2005
    Posts: 11,064

    BJR
    Member

    Hey I'm a rube and I resent that! :D
     
    firstinsteele likes this.
  18. USMC4LIFE
    Joined: Aug 5, 2012
    Posts: 40

    USMC4LIFE
    Member
    from Eastern NC

    I have a dynaflow and yoke out of a 63 Buick. It's for an open driveline. Located in NC if your interested. You can have it. [email protected]
     
    Last edited: May 5, 2020
    firstinsteele likes this.
  19. Colton, I think it would be neat! But then, I like all things Buick.
    Be a lot easier to go the way you want than the other way, I think.

    And they are GOOD transmissions. And as for bad reputations, shucks, I had a bad one until I found a woman that could handle me.

    Ben
     
    gggholson and Hnstray like this.
  20. lucas doolin
    Joined: Feb 7, 2013
    Posts: 591

    lucas doolin
    Member

    A very good friend who had a body shop in Saint Petersburg, FLA had an Olds with a Buick Dynaflow trans back around 1965 or so. It was great fun for impromptu street racing. Competition would be listening for the Olds to shift gears (which, with the Dynaflow, of course never happened) winding their engines tighter and tighter until they finally gave up. Anyhow, Dynaflow transmissioned Olds and Cads did exist. I know cause I drove one.
     
  21. BuckeyeBuicks
    Joined: Jan 4, 2010
    Posts: 2,769

    BuckeyeBuicks
    Member
    from ohio

    Some Pontiacs had a Dynaflow too, my cousin had a 53 Catalina with Dynaflow and he loved it.
     
  22. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,355

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    I once read that some Pontiacs had Powerglides during that Hydramatic shortage. If true, perhaps it was the 6 cyl models and the straight eights got the Dynaflow.??

    Ray
     

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