Broken axle shaft stud in hub

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Hughjazz, Jan 14, 2020.

  1. Hughjazz

    Hughjazz Bobtail Member

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    I have 3 questions.

    1. Is this a dot infraction? The other bolts are tight and it's not leaking.
    2. Am I destined to break more if I leave it for a while till the weather improves?
    3. The stud snapped flush with the hub. So there is probably 2" of thread in the hub still,. Would you remove the hub and try a drill press and ez out, or would you try to do it on the axle ?

    Thanks
    I'm still learning at this, but I'm doing my best
     
  2. spyder7723

    spyder7723 Road Train Member

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    If you run legal loads on good roads id stick a hubcap on it to hide it from prying eyes and wait for a warm dry day to deal with it. Run over weight on rough gravel roads ir go into muddy job sites and ya might want to fix it asap.
     
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  3. 6wheeler

    6wheeler Road Train Member

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    Stick a nut over the broken stud and weld it from the inside out. While it's still hot after welding put a wrench on it to remove it
     
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  4. Raffito

    Raffito Light Load Member

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    Yes, Dot infraction.
     
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  5. AModelCat

    AModelCat Road Train Member

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    How? Just curious. Its not like the wheel's going to fall off or anything. They pull those shafts right out when they tow the truck or when a guy has a diff blow up and they need to get it home.
     
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  6. AModelCat

    AModelCat Road Train Member

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    OP, if the stud broke from impact with a log or something I'd just change the one and be done. If it broke from fatigue or corrosion I'd consider replacing all of them.
     
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  7. Raffito

    Raffito Light Load Member

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    Manufacturers install 8 or 10 studs fo
    Because it has as many needed. And if one breaks and gets ignored you may end up with all broken stud. I call that preventive maintenance.
     
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  8. BoxCarKidd

    BoxCarKidd Road Train Member

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    If I planned to run a little I would make sure the the others will tighten to spec.
    This is one I did. The distance from the end of the bolt to the broken stud is how deep it was broken off in the hub. Tried a drill and easy out first. KIMG0319.jpeg Spotted with a stainless rod over and over. Then welded to the bolt.
     
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