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Problem with this? *pics*=UPDATE=

Discussion in 'The Garage' started by MTChevy, Jul 26, 2006.

  1. MTChevy

    MTChevy 3/4 ton status Premium Member

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    This is a 14BFF in a 1/2 ton truck that had a 10bolt. Used napa Part number #447. 10 bolt to 14B conversion joint. Why is it not conversioning? Thanks

    [​IMG]
    [​IMG]
     
  2. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    the joint looks a bit small............I usually have to tap it in with a hammer because its so tight.
     
  3. MTChevy

    MTChevy 3/4 ton status Premium Member

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    If I was to tap it in with a hammer, wouldnt there be a lot of space under the strap? The only place that cap is really touching is at the top of the yoke on the picture.
     
  4. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    The strap should be nice and snug. You need new straps.
     
  5. MTChevy

    MTChevy 3/4 ton status Premium Member

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    so the joint is right? just the wrong straps? that would be cool! id hate to have to get another joint. I got the straps at napa too
     
  6. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    Its hard to tell in the pic but it looks like a small joint, there should be no play at all around the cap.
     
  7. 79k20350

    79k20350 3/4 ton status

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    yeah, that doesnt look liek the right jojnt... its possible the wrong one was in the box...
     
  8. MTChevy

    MTChevy 3/4 ton status Premium Member

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    suggestions on what to do then? I dont wanna go spend 20 bux on another 447 and have it be wrong again.
     
  9. 1-ton

    1-ton 1/2 ton status Premium Member

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    This is common and a weak piont with the factory GM straps. HAD drivline offers aftermarket yokes, which uses U-Bolts instaed of straps, as a cure for the weakness in the factory strap design.

    [​IMG]
     
  10. Quackaddict

    Quackaddict 1/2 ton status

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    Very cool word:wink1: I am in the middle of a 12bolt to 14bolt conversion got the new u-joint hope the straps I have work.......I also just read in Four Wheeler that Moroso makes a strap that works like the HAD ones but you may be able to pick those up local????
     
  11. Cajun4x4

    Cajun4x4 1/2 ton status

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    aka what im gonna be doing
     
  12. pvfjr

    pvfjr 1/2 ton status

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    The straps don't appear to be mangled, in fact they look basically perfect. I'd say the joint is too small, the question is why. 447 should be the right joint. Measure the bearing cap diameter at each yoke and post up. Shouldn't be too hard to figure out.

    It looks to me like it's not a 447 S44 to 1350 conversion. In fact, I'd say it was just a straight S44, or possible S44 to 1330 joint. Do you think it was in the wrong box?
     
  13. pvfjr

    pvfjr 1/2 ton status

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    Here's some reference info from another thread to compare with.
     
  14. MTChevy

    MTChevy 3/4 ton status Premium Member

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    I dont think it coulda been the wrong box? I mean if i got the 12B joint wouldnt it not fit into the driveshaft? The driveshaft caps were bigger than the 14B caps i know that much
     
  15. MTChevy

    MTChevy 3/4 ton status Premium Member

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    I'll go measure a bit later and post up my results
     
  16. 1-ton

    1-ton 1/2 ton status Premium Member

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    There was an article, I think on pirate 4X4 on this issue, about the weak pionts and confusing amount of different size factory straps. I think there are supposed to be 3 or 4 different size and style factory straps, which is why the article went into HAD's aftermarket yokes, which use U-bolts instead of straps to cure this problem. They also talked about the problem with the factory straps not mating completly around the u-joint caps, even when the straps are the correct ones.
     
  17. 79k20350

    79k20350 3/4 ton status

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    Jesse, last time i checked doesnt offer 1350 w/ u bolts. besides milling a stock yoke to accept them greatly reduces the strength of the yoke...

    The u joint appears to be too small, the straps may be right. Either way though, if the correct straps are used, (and new), and the joint is right it will be tight, it wont look like that.
     
  18. Cajun4x4

    Cajun4x4 1/2 ton status

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    its in the bible

    http://www.pirate4x4.com/tech/billavista/14b_bible/index.html


    http://coloradok5.com/forums/showthread.php?t=176766&highlight=1350+yoke
     
  19. MTChevy

    MTChevy 3/4 ton status Premium Member

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    inch and an 8th is what i get for a measurement on the cap of the U-joint that goes in the 14BFF yoke...
     
  20. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    you can drill out the threads and get u-bolts if you dont want straps. I know a couple people who have done that with no problems.
     

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