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Technical Need help on 1950 Olds Slip Yoke

Discussion in 'Traditional Hot Rods' started by inliner2318, Aug 21, 2023.

  1. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX

    Seems all my resources have been consumed.

    So I’ll reach out to the best group I know.

    I need a slip yoke for my olds trans. Tried a bunch of 50s stuff and no go.

    What am I looking for and where can I find one?

    1950 Oldmobile 3 speed output from a 1937 Lasalle box.
     

    Attached Files:

  2. squirrel
    Joined: Sep 23, 2004
    Posts: 56,004

    squirrel
    Member

    Not quite sure what you're looking for...do you have a 1937 LaSalle transmission in a 1950 Olds car? or what?
     
  3. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX

    37 lasalle trans with 50 olds output shaft in 30 roadster.
     
  4. Bird man
    Joined: Dec 28, 2009
    Posts: 897

    Bird man
    Member
    from Milwaukee

    Nice prob to have :)
    And seals with different IDs may help out as well.
     

  5. HEATHEN
    Joined: Nov 22, 2005
    Posts: 8,576

    HEATHEN
    Member
    from SIDNEY, NY

    I pushed a yoke from a 1955-63 Chevrolet on my '50 Olds three speed, and it seemed to fit.
     
    IronFord, don colaps and jimmy six like this.
  6. skooch
    Joined: Feb 7, 2007
    Posts: 253

    skooch
    Member

    I’ve got a 46 pontiac driveshaft splined into 1950 olds Hydramatic.
     
  7. In Bakersfield, or the surrounding area there might be a drive shaft shop. Check there.
     
    Last edited: Jan 18, 2024
  8. Srfnken
    Joined: Sep 21, 2021
    Posts: 20

    Srfnken

    Did you find your answer? If not here it is. A 55-63 Chevy yoke and some 64 corvette's will work. Just went through this with my brothers
     

    Attached Files:

  9. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX

    Yes. I found there are two types with the same diameter. One has a square cut spline and the other has a tapered tooth spline. The shape is trapezoidal. Came from a gm product from the 50s. Chevy has the square cut teeth spline.
     
  10. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    So what did you end up getting? I have the same transmission in my Allard and need a slip yoke. If there is an off-the-shelf one that works that would be best. Otherwise will have to have a custom one made up.
     
  11. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX

    You just have to get the right one. There are two types. Square cut spines and ones that are trapezoidal in shape. Not much choice on the matter. The olds mainshaft has trapezoidal splines.
     
    Tow Truck Tom likes this.
  12. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    Do you have a part number and/or source?
     
  13. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX

    No sir. Got one from a friend who had old Pontiac parts laying around. I doubt they are available new.
     
    Tow Truck Tom likes this.
  14. years ago I pulled a yoke out of a early 49/50 hydramatic and it fit perfectly on my 50 Olds output shaft. Was I just lucky? don't know but it may offer up another choice
     
    Tow Truck Tom likes this.
  15. inliner2318
    Joined: May 9, 2008
    Posts: 386

    inliner2318
    Member
    from Tyler, TX


    Yeah. The same on this one. Came from a 51 poncho with AT.
     
  16. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    Thanks guys, will see what I can find.
     
  17. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    Well I am having no luck finding a yoke that will fit, everything I find has the square cut splines. If anyone on the board has one with the tapered splines and wants to part with it, please let me know. Had no idea it was going to be this difficult!
     
  18. BJR
    Joined: Mar 11, 2005
    Posts: 9,871

    BJR
    Member

    Give us the measurements so we have something to go on.
     
  19. RDR
    Joined: May 30, 2009
    Posts: 1,487

    RDR
    Member

    [​IMG]
    Spicer catalog online...
    you need spline number, diameter, and u joint size.

    Hamber dwollam just went through this a few years ago
    ended up with one of these driveshaft slip yokes and had
    the outer lathed down to a seal surface.
    Might PM him about that.
    had the outer casting turned down to a seal surface.
    Good Luck.
    RR
     
    51 mercules likes this.
  20. 51 mercules
    Joined: Nov 29, 2008
    Posts: 3,871

    51 mercules
    Member

    Just went through that. I tried a powrglide one that fit but would of needed to be trimmed way down. The I got lucky and found this one on the HAMB. This what you need to find. . 50 olds.JPG 50olds1.JPG
     
  21. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    Here's the measurements I got:


    1.169 major
    .985 minor

    I need 16 spline, angled splines. The Spicer stuff is all square spline.
     
  22. BJR
    Joined: Mar 11, 2005
    Posts: 9,871

    BJR
    Member

    And the OD is?
     
  23. Peter Bowman
    Joined: Oct 27, 2020
    Posts: 17

    Peter Bowman

    See my reply - OD is 1.169
     
  24. RDR
    Joined: May 30, 2009
    Posts: 1,487

    RDR
    Member

    Possibility... bit expensive and vendor doesn't list splines or size but the Olds Parts book
    does list this as Hyd and Stick trans.
    Might be worth checking into..?
    GM Part # 5667612 (his ad says 5667512 but 5667612 is on the box)
    Good Luck
    RR
    1954 - 1956 Oldsmobile NOS Front Universal Joint Yoke ...
    upload_2024-4-2_21-2-5.jpeg
    Oldsmobile Obsolete
    https://oldsobsolete.com › ... › 1954


    upload_2024-4-2_21-2-5.jpeg
    1954 – 1956 Oldsmobile NOS Front Universal Joint Yoke GM # 5667512 ; NOTE · Images show the condition and what is included in the sale. ; SKU: 5667612 / 5.555 ...
    $245.00‎ · ‎ In stock

    [​IMG]
     
    kadillackid likes this.
  25. dwollam
    Joined: Oct 22, 2012
    Posts: 2,342

    dwollam
    Member

    As @RDR ssaid, I used a Ford pickup sliding yoke that fit the splines well and had the drive line shop where I bought it make the drive shaft and turn the OD of the yoke down to fit my LaSalle trans. They left the yoke long so I could cut it to the length I needed. Seems to work well.

    It's in my '33 Plymouth with 331 Hemi build listed below.

    Dave
     
  26. RDR
    Joined: May 30, 2009
    Posts: 1,487

    RDR
    Member

    "What we got here is a Failure to Communicate".....
    I now realize that there are 2 different tail shaft sizes..
    The LaSalle trans shaft is 16 spline; 1.375 Dia. as in Daves' 33
    The 50 Olds shaft is .........16 spline; 1.172 Dia. as has been said
    and they both have involute splines..

    vtwhead, the 506414 early yoke looks correct. A bit funky with the straps but should work
    if you haven't got it or it is still available...get it.
     
    dwollam likes this.
  27. RDR, I don't have those. Just saw it on the ebay site. Might send him a message to see what is available .....
     
  28. BJR
    Joined: Mar 11, 2005
    Posts: 9,871

    BJR
    Member

    I thought you were measuring the splines, sorry.
     
  29. RDR
    Joined: May 30, 2009
    Posts: 1,487

    RDR
    Member

    as skooch posted the Pontiac and I would guess the Buick standard trans also used the same yoke
    you all are looking for.
    Might try BOP sites that may have parts for sale
     

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