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Help I need info on u-joints

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Highlander, Aug 19, 2001.

  1. Highlander

    Highlander 1/2 ton status

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    I went to replace my rear u-joint today guess what it isn't the right one mine has inside clips on the shaft and two clamp things on the other But the clamp side is shorter than the press in side and the caps are smaller too. I went two four parts stores even NAPA I still haven't found the right one yet!!! Any info will help a part # would be great.
    I'm running a 83 with 700r 12bolt and dana 44. The Blazer came with a 305 but it's got a 350 in it now it also came with 10bolts too. Now I didn't change all this I bought like this.
    Thanks for any help in this pain in the A$$!! Eric

    <a target="_blank" href=http://cethern.tripod.com/erics-home-page-and-other-stuff/>http://cethern.tripod.com/erics-home-page-and-other-stuff/</a>
    AMSOIL Dealer # 529948
    Cethern@interfold.com
     
  2. Liberator

    Liberator 1/2 ton status

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    You need to measure the cap diameter and the distance from cap to cap on each end of the joint. Once you have those measurements convert the fractions to decimals and find the correct conversion in a u-joint catalog that your local parts store will have. My 12 bolt used a Spicer 1310 and I believe newer than 81 trucks used a Sawginaw S-44. That may be a good starting place.

    If it breaks, it wasn't good enough!
     
  3. Highlander

    Highlander 1/2 ton status

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    Yea we did that the clamp side is 3.240/ the clip side is 3.635 And i've gotthe cap dia, also I did just call NAPA he didn't have the 1310 in but will have it monday so will see if it's the odd ball. speaking of that do you remember if ether one of those were odd shaped by chance?
    Thanks for your input Liberator. Eric.

    <a target="_blank" href=http://cethern.tripod.com/erics-home-page-and-other-stuff/>http://cethern.tripod.com/erics-home-page-and-other-stuff/</a>
    AMSOIL Dealer # 529948
    Cethern@interfold.com
     

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