U joint greaser problem

Discussion in 'General Ranchero Help' started by FrenchFan, Jun 20, 2019.

  1. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Hi all,

    Decided to replace the u joints on the 75 today, i have a problem with the rear one, the u joint is from MOOG and the ref# is 430.
    There's no threaded hole on the body of the u joint, only a non threaded hole in one of the cups, there's a classic greaser in the box wich is impossible to screw in the hole of the cup.
    Do i need a special tool to grease this u joint, any ideas how to mount the classic greaser on the cup ???
    Thanks for your help.

    Eric

    https://image.noelshack.com/fichier...929-369973983522824-1710320595050168320-n.jpg

    [​IMG]
     
  2. andrewok1

    andrewok1 In Maximum Overdrive SILVER MEMBER GOLD MEMBER

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    thats a new one on me , looking at the moog universal joint heres the picture
     
  3. andrewok1

    andrewok1 In Maximum Overdrive SILVER MEMBER GOLD MEMBER

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    normal joint grease fitting spot, maybe get different joint
     
  4. colnago

    colnago In Overdrive

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    Some U-joints don't have grease fittings, because they're made to not be regreased. Consumable, I guess. I ran into that when I replaced the U-joints on my '67. Also, I remember the grease fitting located at the "crook" of the U-joint itself, and the legs of the U-joint being hollow to allow for the flow of grease. I don't remember anything that had the grease fitting on an end cap.

    Joseph
     
  5. Jimbob

    Jimbob SITE SUPPORTER- SILVER GOLD MEMBER

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    You might find the grease nipple will cut its own thread as you screw it in the hole. Grease nipples in the spider can be awkward to get the grease gun on due to position of the propshaft, you have to rotate it to find the sweetspot. A grease point located in the cap should be easier to reach.
     
  6. 62restomod

    62restomod In Second Gear

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    How about this? looks like the tool is readilable available.
     
  7. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    The 'zerk' fitting is a pipe threading, and all U.S. pipe threads on such fittings are oversize, and do cut their own threads in order to make a strong seal. Start the threads in the hole, then use a box & open wrench to manually screw it into the cap. Once the hex of the fitting bottoms out and is tightened, then you can pump grease in.
     
  8. aquartlow

    aquartlow In Maximum Overdrive

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    I use this same style grease fitting on my Ranchero's front u-joint(don't have room for traditional zerk fitting greasing due to X-pipe exhaust) , using this type of fitting(type of needle grease fitting) makes greasing the joint EZ. Some designs of this type have a rubber tip to help with sealing, the zerk fitting has a "seat" which allows a good seal.
    [​IMG]
    On a side note, u-joints without grease zerk fittings are inherently stronger since there is no channel within the joint for grease to travel, they are lifetime lubed from factory. My Ford 7.3 4x4 SD uses these and it had 275K miles when I changed the rear u-joint (was ready to change all 3)and there was virtually no wear within the factory original u-joint. Hope this helps.
     
  9. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    I chatted this afternoon with a guy from MOOG and it seems the u joint in the box isn't their ref# 430, however it fits at the rear of my drive shaft. The grease fitting is correct for the #430 but not for the u joint that was in the package....mispacking he said.....
    Thanks all for your comments, i think i'm going to order another one.
     
  10. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    However it exists, thanks Joseph.
    [​IMG]
     
    colnago likes this.
  11. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Yes, i agree with you, it looks like the fitting to use for a grease point in the cup is this kind.
    [​IMG]
     
  12. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Andy, the metal is so hard that i can't press enough on the fitting to start a thread.
    What do you call "box" please ?
     
  13. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Do you use it in the body or in one of the cup of your u joint ?
     
  14. aquartlow

    aquartlow In Maximum Overdrive

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    End of the bearing cap, as shown in the OP's image.
     
  15. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    1) a 'box and open' wrench is one where the 'box' end is enclosed, with 6, 8 or 12 sides inside it for grabbing and turning bolt heads that are either 4,6, 8 or 12-sided heads;
    2) if the steel is too hard, you would need a U.S. pipe thread tap to begin cutting the threads in. Some have the threads already cut, some don't, but usually, if no threads are cut, the fitting is supposed to cut the threads.
     
  16. 5.0 Chero

    5.0 Chero Bahumbug Staff Member

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    there are also press in grease fittings


    the best coarse of action
     
  17. Huevos

    Huevos In Maximum Overdrive

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    Chinese parts eh? ..Those Chinese are messing with you Eric..
     
  18. 62restomod

    62restomod In Second Gear

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    handy_andy_cv64 said:
    The 'zerk' fitting is a pipe threading, and all U.S. pipe threads on such fittings are oversize, and do cut their own threads in order to make a strong seal. Start the threads in the hole, then use a box & open wrench to manually screw it into the cap. Once the hex of the fitting bottoms out and is tightened, then you can pump grease in.

    That's why I suggested the fitting multi tool
     
  19. FrenchFan

    FrenchFan In Overdrive SILVER MEMBER

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    Yes, if so they are going to know where i'm going to screw their fittings on them :D
     
  20. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    We Americans have been saying that about the corporate morons who buy from the Chinese...but it hasn't yet happened.:rolleyes:
     
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