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Best U-Joint (All opinions wanted please)

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by reddog64, Feb 6, 2001.

  1. reddog64

    reddog64 1/2 ton status

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    What's the best U-Joint to put in the rear/front driveshafts??? In my case it's be for a 12 bolt...
    Just wanna know what to buy.. doin preventative maintenance...

    Um... yes officer I know it's too big...
     
  2. Impex

    Impex 1/2 ton status

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    Dana Spicer. You can get them at your local Napa Auto Parts store.

    [​IMG] [​IMG]
     
  3. loudandproud

    loudandproud 1/2 ton status

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    Spicer

    DOOH!![​IMG]<A target="_blank" HREF=http://loudandproud.coloradok5.com>http://loudandproud.coloradok5.com</A>
     
  4. northgate

    northgate Registered Member

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    Spicer. They're way more expensive, but they'll last a long time. Make sure you all the bearing caps have grease in them before you install them. Sometimes grease doesn't distribute evenly to each cap through the zerk.
     
  5. RLBstein

    RLBstein 1/2 ton status

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    The best won i've found is Brute Force. I have a 6.2 diesel in my Blazer and have twisted 3 u-joints in half like paper under high torque. Have never broke a Brute Force and I get them at Autozone. Plus they have red seals which match my bushings.

    82 Blazer
     
  6. 83ZZ502_Jimmy

    83ZZ502_Jimmy 1/2 ton status

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    Spicer above all..!

    Can also get them at the GM dealer
     
  7. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Listen to the people. Kinda wish the government would do the same thing! Yeah, stick with Spicer. You are paying for what you get, and that is quality!
     
  8. Donovan

    Donovan 1/2 ton status

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    Neapco joints are right up there with Spicer. I like them better because they have alot nicer machine work done to them. Look at a Spicer and see where the dust seal is. The spicer joints are justed turned in. They have deep grooves and machining marks. The Neapco joints are grounded all the way thru. By the way Neapco makes Brute Force.



    Donovan
    <A target="_blank" HREF=http://www.rustbucket.coloradok5.com>http://www.rustbucket.coloradok5.com</A>
    Bigger is Better
     
  9. drivelineman

    drivelineman 1/2 ton status

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    oem snap joints are the best-spicer no zerts-
     
  10. Depdog

    Depdog 1/2 ton status Author

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    I would have to say Neapco Brute Force, then Spicer, the Neapco's have lasted much longer in the same spot than the Spicer's I have tried.

    One of the guys in my club buys Ujoints from out west, he has to get me the name, but I have seen him wheel and he has been on the same FRONT AXLE joints in a Dana 44 for over 10 years. The rig is a hybrid he build, the frame is half Early Bronco half Bronco II with a cut down Bronco II body. It has a Dana 44 front and Dana 60 rear and a friggen Nascar 351 under the hood that is PURE POWER. He runs 36" boggers and has snapped a rear axle shaft twice.

    The ujoints are NOT CROSSDRILLED, they are solid, each cap has a needle type grease fitting to grease them. Its a PITA sometimes, but he has not had one fail and he is hard on the rig, it has been driven to MOAB wheeled and driven back to Atlanta GA 4 times, not to mention Tellico and all the wheeling he does here.

    Depdog

    <font color=blue>Weenie K5, little mods' Small Tires!</font color=blue>

    <A target="_blank" HREF=http://depdogsk5.coloradok5.com>http://depdogsk5.coloradok5.com</A>
     
  11. Gandolf

    Gandolf 1/2 ton status

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    Hey Depdog, I'm out west and would like to find out more about the u-joints you describe. Drilled greasable joints are weaker, but the bearings in solid, non-greaseable's don't last as long. Non-drilled greaseables sound like the best of both worlds. Greasing each cap sounds like a PITA but not as much as replacing a broken joint on the trail. If you get me a source, I'll put'em in my truck for a product test. Thanks.

    '89 K5 Silverado..."You can’t have a real adventure, unless the outcome is truly uncertain".
     
  12. Donovan

    Donovan 1/2 ton status

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    Look at the June 1999 FourWheeler magizine and they have all the tests on breaking u-joints and which are best. They said and the data shows that the greasable joints are not that much weaker. In fact the Dutchman greasable was stronger than there none greasable ones. Larger dana 44 u-joints are in the works as we speak.

    Donovan
    <A target="_blank" HREF=http://www.rustbucket.coloradok5.com>http://www.rustbucket.coloradok5.com</A>
    Bigger is Better
     
  13. Executioner

    Executioner 1/2 ton status

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    Drivelineman please explain
     
  14. dyeager535

    dyeager535 1 ton status Premium Member

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    Does Spicer make the "adapter" u-joints? Got a 10 bolt in my K5, with a u-joint from a '76 Blazer 12 bolt.


    Dorian
    My K5 and Chev/Olds tech/links page: <A target="_blank" HREF=http://www.dorianyeager.com/index2.html>http://www.dorianyeager.com/index2.html</A>
     
  15. Executioner

    Executioner 1/2 ton status

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    Yes, they do !
    Sorry I don't have the p/n on me.
     
  16. tom

    tom 1/2 ton status

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    The Napa 447 conversion U-joint works on mine. Don't know if it is made by spicer or not.
     

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