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Noob U joint ?

Discussion in 'The Garage' started by Chrisblazzer89, Feb 4, 2007.

  1. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Ok just got my 3/4 ton axles put in and noticed I needed a new front driveshaft U Joint so I went out and got one its to late to put on. So this will be my first time replacing a U joint and was wondering how to grease it I bought a new grease gun too. I noticed that the U joint has 2 threaded holes and it comes with a plug and a grease fitting. So to grease it do I first put the plug in one hole and the fitting in the other install it in the shaft and then conect the gun to it and fill it?
     
  2. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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  3. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Come on someone help me plz
     
  4. mechted

    mechted 1 ton status Premium Member

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    install it into shaft, then install the zerk, compressed air (if present) needs to escape

    never seen joints with 2 zerks, but yeah, plug one I guess
     
  5. sandawgk5

    sandawgk5 3/4 ton status

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    Do not grease it until it is bolted into your rig. If you do you will push the two caps that are not held in off the cross and then run the risk of loosing a needle.

    Ira
     
  6. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    It has a threaded hole on one of the caps and then one on the body of the u joint

    [​IMG]
    [​IMG]
     
  7. Drey

    Drey 3/4 ton status

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    weird ive never seen a threaded whole on a cap before. My guess is install it, grease it with the plug removed till grease comes out the plug hole then install the plug.
     
  8. OffRoad

    OffRoad 1/2 ton status

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    is that hand cream beside the valvoline? uh oh.:D
     
  9. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    :haha: lol Yea I just love wackin it with the valvoline feels so much better:haha:
     
  10. Jishory

    Jishory 1/2 ton status

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    if one place is more accesible then the other put the zerk in there, bolt it up and grease it
     
  11. Chrisblazzer89

    Chrisblazzer89 1/2 ton status

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    Yea thats wat I was thinking.
     
  12. vortec

    vortec 1/2 ton status

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    two things to consider on grease fitting placement. street truck, absolutely install in the cap. so much easier to get to. however, for a one that sees action, put it on the cross. harder to get to, but it won't get torn off if you rub the driveshaft (i'm talking about the rig, here, not your personal habits. don't screw the fitting into THAT at all!!!). i installed one, last week, and my fitting is on the cross. btw, go very easy on the grease. they generally come lubed, to hold the bearings in place, but if you put too much in there, the bearings will not ratate and they'll wear much faster.
     
  13. goldwing2000

    goldwing2000 Guest

    I've seen axle joints threaded on the caps but not regular shaft joints. Maybe it's a dual-purpose part.

    But yeah, I'd put the zerk in the cross. And make sure you install the joint with the zerk facing AWAY from the axle or you're never going to get a grease gun in there to lube it.
     

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