Wheel came off during towing, how did that happen?

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Made it home late last night:

rotezib.jpg
 
I'm guessing the trailer was attached to a weight-distributing hitch, and the trailer was holding the back of the truck up.

Possible good news: If the truck has a limited slip rear differential, it appears to be working. Otherwise, I would expect the left axle stub would just spin and the vehicle combo would have come to a fairly quick stop.
 
I'm guessing the trailer was attached to a weight-distributing hitch, and the trailer was holding the back of the truck up.

Possible good news: If the truck has a limited slip rear differential, it appears to be working. Otherwise, I would expect the left axle stub would just spin and the vehicle combo would have come to a fairly quick stop.

Yeah, it was the Uhaul's hitch, whatever is standard on the 6x12'. I too thought it held it up for a while.

I don't know if it has LSD.

I still don't get it, if the towing is what destroyed it, or it was something not related, or the towing was just the trigger for a pre-existing situation?

I don't tow often but when I do, I am cognizant about the overloading things. I don't know if this is just 1500 or 1500HD.

Assuming it was overloaded, which I don't think it is, why would the wheel disappear like this?
 
Yikes, so you rode down the road on three wheels plus the trailer?

Did you look at all lugs and tires (pressure check) before towing?

Its more scary that the truck launched a wheel that could have hit another driver...

This sounds like some Volvo tales way back.
 
I always thought the term " I drove the wheels off it" was just a figure of speech. 😅

Maybe looking back it I too would find it amusing but yesterday was a very long day. It was ultimately much cheaper just to buy the firewood there instead of this whole transportation project. I had no idea it would end up being so expensive.
 
Simply: the axle didn’t break.

The wheel came off because it was only held on by one stud/nut. The one that broke.

The owner may have checked them, or may not, but at the moment this came apart, there were no nuts on the other four studs.
 
The owner of the vehicle says I overloaded it and broke the axle.

I need to understand what happens when an axle breaks due to overload, can this be something like this?

Nothing you have shown so far indicates a broken axle.

FYI, when a shaft breaks due to an overload its either torsional or radial ( static).

You couldn't put enough weight on it to break it radially ( statically)- the bearings would fail first long before the shaft would experience a bend moment.

There is no indication of a torsional failure ( fact that the hub is still there indicates the shaft is still in one piece)

Towing didn't cause that scenario but the pictures don't give enough information to accurately ascertain what did.

Based on some of your account and that one picture of the studs, I wouldn't rule out a deliberate act of sabotage either.
 
Yeah, I stopped at a gas station 45 mins prior and didn't see anything weird. I mean I didn't check the torque on lug nuts but nothing visually jumped at me. The wheels were still there.
 
Simply: the axle didn’t break.

The wheel came off because it was only held on by one stud/nut. The one that broke.

The owner may have checked them, or may not, but at the moment this came apart, there were no nuts on the other four studs.

Nothing like blurting out what I was trying to politely say. LOL

I'm not ruling out deliberate
 
Nothing you have shown so far indicates a broken axle.

FYI, when a shaft breaks due to an overload its either torsional or radial ( static).

You couldn't put enough weight on it to break it radially ( statically)- the bearings would fail first long before the shaft would experience a bend moment.

There is no indication of a torsional failure ( fact that the hub is still there indicates the shaft is still in one piece)

Towing didn't cause that scenario but the pictures don't give enough information to accurately ascertain what did.

Based on some of your account and that one picture of the studs, I wouldn't rule out a deliberate act of sabotage either.

Okay, I am trying to process this.
 
I'm sensitive to this, because a wheel came off of a Chrysler minivan, hopped the median on the freeway, and crunched the hood of my Ranger. Did a lot of damage, as we were both probably doing about 70. I suppose if it had bounced differently, it would have hit the windshield and crunched ME.

Police found the owner, but he was uninsured, and I only had liability coverage for myself, so I got nothing.
 
Weird. I stopped at this one gas station maybe 30-45 mins prior to the bang.. went inside. I didn't notice anything unusual, but then maybe I won that rare in 1 10 million situation.

I looked for the wheel all over, up and down 95, to no avail. Maybe it jumped the rail. Believe me, I wanted that mystery solved.

If it's not the axle breaking, and not the lug nuts coming loose, then what is it? Or maybe it was.
 
Simply: the axle didn’t break.

The wheel came off because it was only held on by one stud/nut. The one that broke.

The owner may have checked them, or may not, but at the moment this came apart, there were no nuts on the other four studs.

this is the thing that caught my eye. How can the lug nuts just come off? I mean the entire assembly should have come off?

Where the h3ll did they go???

Let's assume the axle did break, why should have the lug nuts disappeared?? I really don't get it.
 
Wait, you drove it home without a wheel? On that metal skid? How far?

No, I stopped as soon as I heard the noise. It never touched the road until the last second. The mark was left by me moving the vehicle to orient the new tow vehicle in place. There was no mark left anywhere else on the road.
 
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