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Greasable axleshaft ujoints - which way do the zerks face?

Discussion in 'The Garage' started by TX Mudder, Jan 17, 2003.

  1. TX Mudder

    TX Mudder 1/2 ton status

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    I need to assemble my new Dana 60 inner and outer axleshafts. I have new Spicer greasable ujoints.
    I know I need to install it so that I will eb able to grease it, but which way should the zerk be facing? I am thinking the zerks should be pointing towards the carrier.
    -- Mike
     
  2. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    That would be correct, towards the carrier. On driveshafts they almost always go towards the shaft and not the differntial or yoke CV styles are a different animal and one will face the shaft and the other the flange.
     
  3. TX Mudder

    TX Mudder 1/2 ton status

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    Thanks, I got the ujoints installed with the zerk facing the carrier. I appreciate the help.

    One more question: Do the zerks have to be threaded all the way in? There is quite a lot of thread, then the hex shoulder (for the wrench.) I got them installed with about half the thread in, but they are really tight now and I can easily see breaking one off if I keep at it. I greased them and it works fine and they have free range of motion.
    I seem to remember my old 1310 ujoints having the zerks go all the way in, but they weren't spicers they were autozone brute force.
    These are the Spicer 1480s.
    -- Mike
     
  4. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Only tighten the zerks until they are tight, they probably will not tighten all the way down like you said.
     
  5. 87sm465np208

    87sm465np208 1/2 ton status

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    thats kinda strange, not really, but mine are on the Cap of the U-joint of the axle shaft, i hear that is the stronger disign, but with a dana 60 U-joint size, i dont think it would matter. /forums/images/graemlins/thumb.gif

    /forums/images/graemlins/usaflag.gif /forums/images/graemlins/truck.gif
     
  6. Shaggy

    Shaggy 3/4 ton status

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    <font color="green"> I just want to add that the zircs whoud always be in compression. </font color>
     
  7. TX Mudder

    TX Mudder 1/2 ton status

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    Shaggy, care to remind me what that means? I don't remember.
    I already have the ujoints installed and they face towards the inner shaft.
    -- Mike
     
  8. HarryH3

    HarryH3 1 ton status Author

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    When the drive yoke (in this case, the inner axle) is under power in the forward direction, it should be pushing against the part of the U-joint that has the zerk fitting. (I.e., the zerk should be between the drive trunnion and the driven trunnion). If it is pulling on the zerk, then it can cause a crack to start at the zerk fitting. /forums/images/graemlins/frown.gif
     

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