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  •  » vibration coming from wrong u joint

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    2/26/2020 3:40 AM  #1

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    vibration coming from wrong u joint

    Hello guys , after some reserch about my t5 swap and vibration , finally i found a huge mistake from cjpony . 
    it's more than one year that i am driving with wrong u joint on rear driveshaft . 
    Misleading was the description about u joint size , and where i can use that driveshaft . 
    They were too much sure on use and big word used to emphatize that combo even balanced  ! 
    Balanced was not , and who did the job again  ( here in italy ) sayd was a banana driveshaft . Heated up and made it straight again with new weights . 
    Back to the guilty u joint was 1.062 cup on every side  instead 1.062 / 1.125 .  ( 2 per side ) . 
    This ujoint combo size was specially for ford  ( spicer 5-1204x)  .
    The problem now is clear , like the noise and vibration coming from underside . 
    The question is about axle flange yoke : Do you think that comes worn using the wrong ujoiint ? 
    is that needed to replace ? 
    Does anyone has changed the axle yoke in order to have same ujoint size ? ( 1.062  on every side ) 
    Or still using the combo size u joint ? 
    There someone can give me some item code or where looking for it  if i need to change this flange ? ( 8 inch diff)
    Thanks ! 

     

    2/26/2020 12:22 PM  #2

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,668

    Re: vibration coming from wrong u joint

    Glad you found that problem. Common Ford U- joints are 3.219" & 3.622 in width, and as you found out, cup diameters of 1.062 & 1.125.

    To find your part number just search for the two width descriptions, i.e. 3.219 x 3.622. Both Spicer and Denny's Driveline have good charts.

    https://www.dennysdriveshaft.com/c974_universal_joints_by_size.html

    Last edited by Bearing Bob (2/26/2020 12:23 PM)

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    2/27/2020 1:10 AM  #3

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vibration coming from wrong u joint

    Bearing Bob wrote:

    Glad you found that problem. Common Ford U- joints are 3.219" & 3.622 in width, and as you found out, cup diameters of 1.062 & 1.125.

    To find your part number just search for the two width descriptions, i.e. 3.219 x 3.622. Both Spicer and Denny's Driveline have good charts.

    https://www.dennysdriveshaft.com/c974_universal_joints_by_size.html

    Thanks Bob , unlucky i can't find the right combo between width  and cup diameter .  very difficult to match . please can you give me some ujoint code ?  3.219 x 3.622  with cup 1.062 and 1.125  -

    example :  moog 430  says 3.220 x 3.622      cups 1.062 and 1.125   
     But  rockauto refers           2.375 x 3.218  and i don't know who is right  

    Also dannysdriveshaft do not have one piece ujoint with that specific size . 

    Please can someone help me to find correct code ? thanks 

       •Thread Starter
     

    2/27/2020 6:35 AM  #4

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
    Posts: 1,427

    Re: vibration coming from wrong u joint

    1310 is 3.219 inches wide.
    1330 is 3.622 inches wide.
    If you need both widths, it's a combination 1310/1330 joint.
    My 65 8" has a 1310 Big Cap pinion yoke. If yours is the same, with a 1330 driveshaft, you should need this one.
    https://www.dennysdriveshaft.com/p496_11_52844_combination_u_joint_to_connect_1330_series_drivesha.html
    If you have a 1310 driveshaft, the 1310 BC is the correct joint

    Last edited by 50vert (2/27/2020 7:07 AM)

    "Those telephone poles were like a picket fence"
     

    2/28/2020 12:16 AM  #5

    Alessandro
    I FYI 24-7

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    From: Modena -Italy
    Registered: 7/08/2016
    Posts: 707

    Re: vibration coming from wrong u joint

    50vert wrote:

    1310 is 3.219 inches wide.
    1330 is 3.622 inches wide.
    If you need both widths, it's a combination 1310/1330 joint.
    My 65 8" has a 1310 Big Cap pinion yoke. If yours is the same, with a 1330 driveshaft, you should need this one.
    https://www.dennysdriveshaft.com/p496_11_52844_combination_u_joint_to_connect_1330_series_drivesha.html
    If you have a 1310 driveshaft, the 1310 BC is the correct joint

    To be sure i take out my old diveshaft and measures wide and cup size at rear u joint . 
    Size are :  3.219 on every side with 1.062  and 1.125  cups. 
    The only one greasable is NEAPCO 1-4635   
    hope is the right one 
    unlucky dennysdriveshaft dont ship to italy

    Last edited by Alessandro (2/28/2020 12:17 AM)

       •Thread Starter
     

    2/28/2020 12:46 AM  #6

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
    Posts: 1,427

    Re: vibration coming from wrong u joint

    Looks like you've got it solved. Good luck.

    "Those telephone poles were like a picket fence"
     

    3/02/2020 5:22 PM  #7

    mark1965
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    Registered: 4/03/2013
    Posts: 172

    Re: vibration coming from wrong u joint

    what driveshaft did you buy from cj pony ?
    i bought mine there and have been fighting a vibration ever since,

     

    3/02/2020 6:40 PM  #8

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
    Posts: 1,427

    Re: vibration coming from wrong u joint

    Measure the caps on the pinion yoke. If they're not 1 1/8", you have the same problem Alessandro had.
    It doesn't look like any of their driveshafts have the correct Big Cap cup size for the pinion yoke.

    "Those telephone poles were like a picket fence"
     

    3/02/2020 6:50 PM  #9

    6sally6
    Hyper FYIFORD ADDICT

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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,867

    Re: vibration coming from wrong u joint

    See my updated post about my u-joint/vibration.  The locks on the U-joint were hitting the rear yoke....and destroying it in short order!  I removed the locks on the yoke part of the u joint and works vib free!  Found out they are NOT needed!
    6sal6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

     

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