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How do you test the Front axle U-Joints

Discussion in 'The Garage' started by Cmoe, Jun 3, 2005.

  1. Cmoe

    Cmoe 1/2 ton status

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    How do you know if they are going out?
     
  2. mechted

    mechted 1 ton status Premium Member

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    best method is to pull the axle out of the differential
    then rotate the stub through all angles, if you feel any resistance or grinding, replace them
    without pulling them from the axle housing, its really hard to tell for sure, but when in doubt, replace them
     
  3. sweetk30

    sweetk30 professional hooker Premium Member

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    take frt shaft from case and twist it by hand and watch for play. or look for rust from caps. and last like above listed. and in my opinon only use the best spicer or brute force joints in the frt axle area.
     
  4. dyeager535

    dyeager535 1 ton status Premium Member

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    Asked a similar question a couple of weeks back, didn't really get much of an answer.

    I was looking at mine under the truck, and noticed that there was a "crack" in the material over the u-joint cap (uses a small pressed in metal cap I guess) and the axleshaft, which is apparently paint, because it's hard.

    I suspect this is an indication that they are going bad. The one axleshaft I've seen before that had a bad joint in it was also missing this, like the u-joint caps start to walk out of the axleshaft or something. Just looked it up in the parts manual, they don't break it down any further than "u-joint repair kit".
     
  5. Cmoe

    Cmoe 1/2 ton status

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    Thanks guys I guess since it's going to be pulled apart anyway I might as well rebuild it..... 27 years old I guess it's time..... Anyone have a set 4:10 gears they want to sell (for a Dana 44)?
     
  6. captaininsano

    captaininsano 1/2 ton status

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    I just pulled mine to replace the ball joints and I found both sides are bad. They only move on one plane by hand, I can't believe something didn't break last weekend!
     
  7. mechted

    mechted 1 ton status Premium Member

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    thats exactly how i discovered mine were bad... replacing the ball joints
    PO didnt know what "grease," "maintenance," or "safety check" mean
     
  8. sweetk30

    sweetk30 professional hooker Premium Member

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    sounds like its time. and what gears do you have now? the carrier split is 4.10-up. you might need a carrier. if so pm me i have one.:D
     

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