Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

What could cause a massive u-joint failure??

Discussion in 'The Garage' started by 85mudblazin, Jul 17, 2004.

  1. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    Tonight I was stopped at a stop sign about to turn right and when I pushed the gas my blazer kindove lurched and a loud bang occured, I jump out look under the truck and there is no driveshaft I turn around and there it is a about 6ft away I look at it and both u-joints were broke off at the caps, Luckly I was about a 1/4 mile away from my house so I drove home in 4wd with tranny fluid pooring out, WHAT COULD HAVE CAUSED THIS?????
    Next question is what u-joint is in a rear driveshaft out of a 1985 blazer with a 208 t-case and a 10b rear??
    Much thanks.
    -Chris
    P.S: I will have carnage pics tomorrow!!!
     
  2. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Catastrophic failure is caused 99.999999999999999% of the time by the yokes binding.

    2-3011 is the part number you're looking for, 2-3012 for greasable through the cap if desired.
     
  3. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    [ QUOTE ]
    Catastrophic failure is caused 99.999999999999999% of the time by the yokes binding.

    2-3011 is the part number you're looking for, 2-3012 for greasable through the cap if desired.

    [/ QUOTE ]



    Is the other 0.000000000000001% from popping wheelies?
     
  4. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    What would cause the yoke to bind?? I have herd a little noise during sstoping and starting you think this had something to do with it?? Could there have been a crack in a u-joint and it just all of a sudden gave out??
    Thanks
    -Chris
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    [ QUOTE ]
    [ QUOTE ]
    Catastrophic failure is caused 99.999999999999999% of the time by the yokes binding.

    2-3011 is the part number you're looking for, 2-3012 for greasable through the cap if desired.

    [/ QUOTE ]



    Is the other 0.000000000000001% from popping wheelies?

    [/ QUOTE ]

    That other minor percentage is the people that actually have enough torque to make a u joint that is not binding fail, which is pretty rare without a severe shock load.
     
  6. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    What size are the rear u-joints??
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Saginaw S44. Comparable in size to a Spicer 1330.
     
  8. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    Which would be the beter brand to buy?? or will only the saginaw s44 fit??
     
  9. 84_Chevy_K10

    84_Chevy_K10 Banned

    Joined:
    May 30, 2001
    Posts:
    17,669
    Likes Received:
    0
    Location:
    IL, USA
    Saginaw S44 is the size of the joint. You can buy whatever brand you want.
     
  10. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    Is there any one brand that is better than the other??
     
  11. Hossbaby50

    Hossbaby50 3/4 ton status

    Joined:
    Sep 1, 2001
    Posts:
    8,972
    Likes Received:
    0
    Location:
    Peoria, AZ
  12. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    [ QUOTE ]
    Spicer

    [/ QUOTE ]

    Ya, what he said /forums/images/graemlins/thumb.gif
     
  13. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    so can I just take those parts #'s to say napa and tell them I want spicer brand??
     
  14. Hossbaby50

    Hossbaby50 3/4 ton status

    Joined:
    Sep 1, 2001
    Posts:
    8,972
    Likes Received:
    0
    Location:
    Peoria, AZ
    You need to find a parts store or driveline store that carries Spicer. Not all parts stores can get them. Even less stock them.

    Harley
     
  15. ugly_blazer

    ugly_blazer 1/2 ton status

    Joined:
    Apr 12, 2004
    Posts:
    1,214
    Likes Received:
    0
    They may not be able to get spicer, you can always ask them though. They should be able to cross reference the number that Tim gave you.
     
  16. backcountry

    backcountry 1/2 ton status

    Joined:
    May 27, 2004
    Posts:
    916
    Likes Received:
    0
    First off; have you been having problems with breaking u-joints or is this the first time?

    Second; is the original driveline that came with your truck?

    Thirdly; what modifications have you done to your truck? Your driveline angles may be wrong.

    Fourthly; you may have damaged your driveline in some way prior to this incident and it finally gave out.

    If I were you, I would take the driveline into a shop and have it checked out for damage and possibly have it balanced.

    Before you do however, I would take measurements to make sure your driveline is the correct length. Here is a site; http://www.dennysdriveshaft.com/html/how_to_measure.html


    The easiest thing to do is just replace your u-joints; however you still need to find out why they broke in the first place. The above is all just for preventive measures.
    /forums/images/graemlins/peace.gif
     
  17. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    This is the first time this has ever happened as you can tell by my lack of knowledge, I have a 4" lift and my angles were off and I had a vibration so I put shims in and that solved everything so my angles are good, so the only thing that I can think of is that the u-joint was damaged sometime and then it just gave out.
    Thanks
    -Chris
     
  18. 85mudblazin

    85mudblazin 1/2 ton status

    Joined:
    Mar 26, 2004
    Posts:
    3,951
    Likes Received:
    0
    Location:
    Austin,TX
    I am saving up to buy a HAD cv shaft so I will prolly just replace the u-joints and hopefully they will last about a month, I dont see why they wouldnt, they have lasted for about 1 year which is when I had them replaced when I bought it.
     
  19. TrcksR4ME

    TrcksR4ME 1/2 ton status

    Joined:
    Feb 11, 2002
    Posts:
    2,482
    Likes Received:
    0
    Location:
    Seattle, WA 98103
    [ QUOTE ]
    Catastrophic failure is caused 99.999999999999999% of the time by the yokes binding.

    [/ QUOTE ]

    that doesn't sound right to me for some reason /forums/images/graemlins/thinking.gif

    The three I lost had nothing to do with bind, and what about operating angle and wear on the needle bearings? Usually something that happens all the sudded is far from sudden at all and probably had signs that it was getting worn or was damaged before it failed. Most people interpret these things as all the sudden but loud stereos or not paying attention to the sounds your truck makes might have something to do with it /forums/images/graemlins/dunno.gif /forums/images/graemlins/deal.gif
     
  20. TruckNutzDude

    TruckNutzDude 1/2 ton status

    Joined:
    Mar 31, 2003
    Posts:
    3,532
    Likes Received:
    0
    Location:
    Agawam, MA
    [ QUOTE ]
    This is the first time this has ever happened as you can tell by my lack of knowledge, I have a 4" lift and my angles were off and I had a vibration so I put shims in and that solved everything so my angles are good, so the only thing that I can think of is that the u-joint was damaged sometime and then it just gave out.
    Thanks
    -Chris

    [/ QUOTE ]
    Did you also lower the t-case down when you did that?
     

Share This Page