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Napa 447- Wow, some costly u-joints!

Discussion in 'The Garage' started by Pookster, Sep 6, 2003.

  1. Pookster

    Pookster 1/2 ton status

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    This 447 cost me 30 bucks! not to mention the funny looks I got.... when I walked into the NAPA in NYC asking for a 447, and the two guys behind the counter said, "447? what is that?". Luckily, they punched it into the computer. they said, "hold on.. let me dust it off. In all my 10 years working here, nobody has ever bought a 447."
     
  2. rugger03

    rugger03 1/2 ton status

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    what is a 447?
     
  3. 87BrnRsd

    87BrnRsd 1/2 ton status

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    The 447 is a conversion u-joint that has a 10 Bolt 1310 series cap on one side, and a 14ff 1350 series on the other.
    -Harrison
     
  4. heavy4x4

    heavy4x4 1/2 ton status

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    [ QUOTE ]
    The 447 is a conversion u-joint that has a 10 Bolt 1330 series cap on one side, and a 14ff 1350 series on the other.
    -Harrison

    [/ QUOTE ]

    Fixed it for you. /forums/images/graemlins/thumb.gif
     
  5. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Um, no. It's 1310. It just has internal locking clips.
     
  6. heavy4x4

    heavy4x4 1/2 ton status

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    Hey
    man,
    I
    tell
    no
    lies.

    /forums/images/graemlins/deal.gif /forums/images/graemlins/thumb.gif
     
  7. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Believe what you wish, I believe my driveline guy.
     
  8. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    The 12 bolt (1310) to 14 bolt (1350) is Napa number 348
    The 10 bolt (1330) to 14 bolt (1350) is Napa number 447

    This is the same info I have as well. Might want to tell your d-line guy to double check. Esp since 12B came w/ a 1310 yoke and 10B rears came w/ a 1330.
     
  9. heavy4x4

    heavy4x4 1/2 ton status

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    /forums/images/graemlins/thumb.gif
     
  10. 89GMCSuburban

    89GMCSuburban 1/2 ton status

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    Yes-sir. Asked for a 1310 to 1350 conversion joint, one side too small for the shaft. It's actually a 1330 on the 10 bolt...
     
  11. BowtieRed

    BowtieRed 1/2 ton status Author

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    the napa site does not recognize 348 or 447. i went to napa and told them 348 and they wouldn't find a u-joint by that number. what's wrong!?!?
     
  12. Beast388

    Beast388 1/2 ton status

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    I looked on Napa's website and couldn't find them either. I had to call my local Napa to get a price. /forums/images/graemlins/thumb.gif
     
  13. SUBFAN

    SUBFAN 1/2 ton status

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    Most websites only tell half the story, and their info is usually old too....

    Web wheeling is fun, but I would still rather talk to someone in person....
     
  14. 87sm465np208

    87sm465np208 1/2 ton status

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    thats not that bad, for my 10 to 12 conversion the u-joint i needed was 27$, so dont feel so bad, and i need to get another one, hopefully carquest has one, i dont want no more federial moguel crap u-joints, give me a neapco anyday
    /forums/images/graemlins/thumb.gif.

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  15. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    Actually,

    I have called and talked to spicer and neapco. The Joints on all 10 bolt rear axles with an auto tranny are Saginaw 44 Joints. A 1330 will NOT work, as it is the wrong one. I have done my own research on this too. I can back up my statement with facts if anyone cares to dispute me.

    However, if you get a manual trannied truck with a 10 bolt rear, you get 1350 size U-joints. I am also very sure of this. Can back this up with facts also if nescessary.

    I don't want to start a flame war, just trying to set the record straight, as I have gone through this pain myself too many times. Now I am in the Know.. and hope to help others out there.

    My .02,
    John
     
  16. Pookster

    Pookster 1/2 ton status

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    well, I'll be tossing the u-joint in today. So I'll all let you know whether or not it fits on a 87 208, 700R4, 10 bolt. /forums/images/graemlins/smile.gif
     
  17. 84_Chevy_K10

    84_Chevy_K10 Banned

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    [ QUOTE ]
    I have called and talked to spicer and neapco. The Joints on all 10 bolt rear axles with an auto tranny are Saginaw 44 Joints

    [/ QUOTE ]

    That's funny. The guy that sold me my rear driveline mentioned those an said something about a 1310 working in their place. A long time ago when I had a 12 bolt still, someone sold me a S44 to 1330 joint I'd thought to run my 12 bolt. Apparently everyone seems to think that a 12 bolt has 1310 joints, and honestly my 12 bolt is too far long gone to the scrapyard for me to tell you, but if that turns out to be true, it must have been an S44 to 1310. I can tell you that my 14 bolt has 1350s and that the back of my transfer case has a 1310 on it from a '79 K10 and my shaft is all 1350 so I run a combo joint there. If a '79 K10 with a manual trans is supposed to have 1350 joints I want to know where mine are. In the mean time I'll continue to look for a cheap 1350 yoke for my 205 while you explain to me why I have a 1310 yoke there.

    Guys, just a news flash on Autozone Ujoints. They're Neapco. You don't have to spend $25 at Carquest to get a Neapco U joint. I was going to until I took the so called, "Neapco Premium" joint out of the box at Carquest and found the same joint we sell at Autozone as a, "Brute force".

    I did some research one morning in the Neapco catalog and found part numbers for 1350 to 1310 jionts. Autozone sells them, stocks them right on the shelf and everything. I can't remember the part number. My National Guard unit is getting ready for possible deployment this week so this research will have to wait until then, but if I can find the Neapco catalog, I'll give you guys some part numbers so you can go to Autozone and get the parts you want for half what Napa or Carquest gets for them.

    My driveline guy sells Neapco HD joints that have smaller needle bearings and look better to me, That's what I've got in my rear shaft and so far they're holding up very well. I may grab a set of AZ joints to keep as spares though.
     
  18. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    [ QUOTE ]
    That's funny. The guy that sold me my rear driveline mentioned those an said something about a 1310 working in their place. A long time ago when I had a 12 bolt still, someone sold me a S44 to 1330 joint I'd thought to run my 12 bolt. Apparently everyone seems to think that a 12 bolt has 1310 joints, and honestly my 12 bolt is too far long gone to the scrapyard for me to tell you, but if that turns out to be true, it must have been an S44 to 1310. I can tell you that my 14 bolt has 1350s and that the back of my transfer case has a 1310 on it from a '79 K10 and my shaft is all 1350 so I run a combo joint there. If a '79 K10 with a manual trans is supposed to have 1350 joints I want to know where mine are. In the mean time I'll continue to look for a cheap 1350 yoke for my 205 while you explain to me why I have a 1310 yoke there.

    [/ QUOTE ]

    Tim, I don't know why you must always be a [I love Jeeps] smartass know-it-all. I have researched and done my homework on these joints, as I have also learned the hard way (read $$$). /forums/images/graemlins/rolleyes.gif You always are like this. Why dont you make an effort to be a little nicer.

    In my statement that all ten bolts with an auto tranny had S44 joints, I am correct. Your statement above shows your ignorance. You said that your 1979 application had a 1310 joint and your wondering where your 1350 is? Sorry, in 1979 12 bolts were used. They used 1310 joints. So you are incorrect. I said, well lets quote you [ QUOTE ]


    Quote:
    --------------------------------------------------------------------------------

    I have called and talked to spicer and neapco. The Joints on all 10 bolt rear axles with an auto tranny are Saginaw 44 Joints


    --------------------------------------------------------------------------------




    [/ QUOTE ]

    The 10 bolt was not introduced until 1981.

    I have incuded some pages from my Neapco catalog for you to peruse. Please see attached images. I am sure you will turn this around and make it so I'm wrong, thats fine /forums/images/graemlins/smirk.gif Anyone that reads the information will know otherwise.

    This deals with rear axles only. The pages will show that anything 81 and prior will take a 1-0153. The pages show this to be a 1310. They also show that anything 81-82 (changeover year) and with an automatic take a 2-3011 which is a Saginaw 44 joint. And lastly it also shows that anything 82 and newer (10 bolts again) with a manual tranny take a 2-0053 which is a 1350 series joint.

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]




    And a NAPA 447 is a S44 to 1350 conversion joint. I hope this clears any confusion.

    John
     
  19. Depdog

    Depdog 1/2 ton status Author

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    NAPA Ujoints are actually made by Precision. I buy the Precision ones (same joint) from the local place and pay $18.00 each for them.

    Depdog
     
  20. Pookster

    Pookster 1/2 ton status

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    Wow, that was a lot of info. Here's the facts I *DO* know.

    1. I went to NAPA, asked for 447.
    2. they handed me a u-joint.
    3. They fit very nicely into said application (1 ton to 10 bolt converion).

    im acutally using it in reverse of what most people use, and Im using a 1 ton drive shaft, and a 10 bolt rear. But i just put it in today, and it fits just fine.
     

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