Eaton rear differential housing and axle torque specs

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Feb 28, 2024.

  1. mile marker 27

    mile marker 27 Road Train Member

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    Looking for the suggested torque specs for the rear differential chunk and the axles, on an Eaton rear drive.
     
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  3. BoxCarKidd

    BoxCarKidd Road Train Member

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    Just get a bolt torque chart. torque them to the torque for grade 8 course thread bolts that size. That is one thing that I never saw anyone torque but nothing wrong with being proper.
     
    Oxbow, Last Call, W923 and 1 other person Thank this.
  4. W923

    W923 Heavy Load Member

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    Pretty sure on a Rockwell with 5/8 studs and fine thread nuts the chunk is around 220
    Axles with 5/8 studs and tapered cones are considerably less probably around 180
    Can’t really say I’ve ever worried to much about it mainly because torquing the chunks with any accuracy is going to be pretty tough
     
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  5. Last Call

    Last Call Road Train Member

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    4 to 5 ugha duga’s with a Milwaukee 1/2 drive
     
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  6. mile marker 27

    mile marker 27 Road Train Member

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    That’s what I was thinking. When it quits oozing the black permatex out, we good.
     
    Oxbow Thanks this.
  7. Last Call

    Last Call Road Train Member

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    Don’t use the black use the Red or blue there 2 on studs on top that you have to use a box end wrench I’ve always just doubled wrenched those 2 nuts
     
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  8. W923

    W923 Heavy Load Member

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    Why??? Used the black permatex from the calking tube for years can’t say I have ever had a problem
    Is red or blue better?
     
  9. Last Call

    Last Call Road Train Member

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    The different shops I’ve been around all refuse to use the black permatex for anything especially anything having to do with sealing two machined surfaces I was always told that it’s not as pliable and tends to dry and crack I know of two shops in the local area that refuse to even have it in their shops one of them being the local JD dealer the other is a good friend of mine I’am not saying he is god but he would run anybody out of his shop if he seen them using black permatex I know of others myself included that won’t use the black for anything
     
    Last edited: Feb 29, 2024
    BoxCarKidd, W923, Oxbow and 1 other person Thank this.
  10. mile marker 27

    mile marker 27 Road Train Member

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    I can get to and on all the nuts with a 1/2” impact.
     
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  11. Goodysnap

    Goodysnap Road Train Member

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    Clean flanges with denatured alcohol. Ultra grey permatex. Locktite the threads . Red or blue you pick. Stalled half inch gun is sufficient. 250 or so.
     
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