Wow! I have not see that. If everything spins freely then there must have been some damage on the shaft that failed spontaneously.

 

Wow! I have not see that. If everything spins freely then there must have been some damage on the shaft that failed spontaneously.

I know right! I cannot think of anything else because everything seems to be working fine. I'm just thankful it didn't happen when I was on the highway, was planning on going camping this coming weekend Haha.

 

His is a rather odd occurrence, the drive shaft twisted and just sheeted itself right in the middle... rather odd I'd say, any lift on the truck, like blocks or something? I've heard of people doing this on high hp vehicles on prepped surfaces but never on a semi stock truck taking off from a light...

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Is it odd to see the back half of the drive shaft still sitting in the old position though. Wonder if that u joint froze and caused extra resistance along with some other pre existing issue? How is the gas tank from being smacked by sheeted aluminum?

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WOW! :shock:

That is totally cray cray...glad you were going slow because at 2 or 3 thou RPM it would have been ugly for sure.

 

Could have turned into a pogo stick on the freeway and would have been saying hello insurance fees through the roof!

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Hmmm...there are other threads on the aluminum shafts failing. Unusual but not unprecendented really.

I'd like to know the failure rate on them so I can avoid this.

 

I guess you'd have to get those wheels up to see if the rear end / gears still turn back there. Truck looks stock, the shaft does not have a bad angle and you can see the axle / wheel.

 

His is a rather odd occurrence, the drive shaft twisted and just sheeted itself right in the middle... rather odd I'd say, any lift on the truck, like blocks or something? I've heard of people doing this on high hp vehicles on prepped surfaces but never on a semi stock truck taking off from a light...

Yeah i know its super odd. Especially just taking off from a red light and it's not like I was doing a burnout lol I just accelerated normally. And nope no lift or anything everything was stuck from the dealership the suspension was re done at 100,000 km but it was was replaced with stock parts.

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Is it odd to see the back half of the drive shaft still sitting in the old position though. Wonder if that u joint froze and caused extra resistance along with some other pre existing issue? How is the gas tank from being smacked by sheeted aluminum?

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Yeah it should he dangling like the other piece I would think. When I took it off that u joint was really stiff like I could still move it back and forth by hand but it was difficult like definitely not how it should have been. Once I lubed it up to try and take it apart it was moving more freely. It definitely played a factor I think too along with something deficient with the metal. I took the clips out and I cant even get the caps off the u joint though.

The gas take is fine luckily, I was only starting to accelerate from a red light thankfully. The exhaust took most of the hits when the piece was flopping around sounding like a tin can baha.

 

I wonder why the rear 1/4 of that driveshaft is still up and pointing straight forward instead of hanging down at a 7 or 8 ocklock position...... does that look odd to anyone else too?

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1 things for sure...I feel like going home and getting under my truck and lubing my u joints now.

canada is hard on them metal parts :lol:

 

WOW! :shock:

That is totally cray cray...glad you were going slow because at 2 or 3 thou RPM it would have been ugly for sure.

I know I'm so lucky lol, I was working an hour away at an airfield for work too so I was going 120km and hour on the highway there and back just the day before...

 

Could have turned into a pogo stick on the freeway and would have been saying hello insurance fees through the roof!

I know right I'm glad it didn't snap the other way and catch a pot hole lol .... Im considering installing a roll cage now... :lol:
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Hmmm...there are other threads on the aluminum shafts failing. Unusual but not unprecendented really.

I'd like to know the failure rate on them so I can avoid this.

Yeah same here, they're so thin it seems but you cant even get steel ones anymore

 

I guess you'd have to get those wheels up to see if the rear end / gears still turn back there. Truck looks stock, the shaft does not have a bad angle and you can see the axle / wheel.

I actually did do this, according to my build sheet my differential is limited slip and they seem to spin fine. The truck is stock (havn't had the chance to do anything yet haha) I even took the diff plate off and drained the oil and watched the gears as they spun and everything looked fine.

 

I wonder why the rear 1/4 of that driveshaft is still up and pointing straight forward instead of hanging down at a 7 or 8 ocklock position...... does that look odd to anyone else too?

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Yeah it should he dangling like the other piece. When I took it off that u joint was really stiff like I could still move it back and forth by hand but it was difficult like definitely not how it should be. Once I lubed it up to try and take it apart it was moving more freely. It definitely played a factor I think too along with something deficient with the metal. I took the clips out and I cant even get the caps off the u joint though. Should have replaced them sooner

 

1 things for sure...I feel like going home and getting under my truck and lubing my u joints now.

canada is hard on them metal parts :lol:

Hahaha yeah thats why I wanted to share this with everyone. Never even heard of this happening before usually it would break at the U Joint. But yes we are, the -50 degrees C to +40 degrees C climate puts them to the test haha

 

I had a u joint fail on me doing 70 mph on the interstate. Wanna talk about a good time to carry extra toilet paper? I was blessed I didn't get pogo'd across the median. But it is not a good feeling!! But your case is definitely odd for sure. I've never seen or heard of that. Glad you're okay!

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I have seen them fail at speeds above 100 mph, but not from acceleration from a stop light.

Time to call Driveshaft Specialist and order a 5" .120 wall Aluminum one.

 

Metal fatigue? Fatigue occurs when a metal is subjected to repeated loading and unloading. It may have seen some hard use prior to you acquiring it. Probably pulled or hauled heavy loads routinely.

 

Oh Snap!! Get it. Sorry couldn't help that one. I would say that seized up u- joint had something to do with it. Ever go off road with it? If there was a dent in the shaft (you probably would have felt it) that in combo with that funky u-joint would have be the cause of you catastrophic failure.

 

WOW!!!
I see this a few times in army trucks (Unimogs) but never in a street truck
Looks like you have a lot of torque
The guys in the army here replace the tube with a stronger one, mig or tig welded

Cheers

 

Mine jus done the excact same thing turning at a four way no reason at all it should have done that I have no explanation 🙈

 

this happened to me yesterday, if driving this could be deadly!

it's hard to believe a drive shaft would be made with super thin aluminum, maybe AI was involved?

I have photos on my phone, I'm going to upload tonight hopefully