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NCC Forum Home Page -> NCC - General Discussion -> Chevelle snaps a u joint on dyno.
Post Info TOPIC: Chevelle snaps a u joint on dyno.
jim larson


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Chevelle snaps a u joint on dyno.
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Makes one think about installing a loop.  67 chevelle snaps a joint.



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Jim L

Lake City
bowtie


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A loop is a cheap and easy thing to do. With the wheels spinning, I wonder why it broke, was it just that much more power instantly put to it or was there a mis-alignment issue?

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Bryan-NW 'burbs
1972 Malibu
Vaguely stock appearing, and the opposite of restored.
1999 std bore 5.7, Vortec heads, Holley Stealth Ram, GM cam
700R4, Viking coilovers, 12 bolt 4.10 posi, and a whole bunch more
John D


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What continually amazes me are the knuckleheads in the crowd... all crammed in close and "on axis" with all the spinny parts - like u-joints, clutches, flywheels, etc.
Doesn't matter how many sit-ups you do in the morning, having a u-joint cup in your spleen will ruin your day!

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John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

2018 Factory Five MkIV Roadster build thread
dashboard


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John, that’s exactly what I thought the instant I saw the video.
Two theory’s might apply here, the Darwin theory and God looks out for idiots. See any hold back straps? Think anyone inspected the dynamic components prior to testing them to their maximum load.
Looks like the driveshaft failed close to the mid section; I think I would suspect balancing or misalignment.


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Kevin

Northwestern Ohio
John D


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dashboard wrote:

John, that’s exactly what I thought the instant I saw the video. ...

 I dunno, maybe you and I have an advantage in education from being around aircraft... those red stripes marked "Propeller" really do mean something! Nothing like a 500+ shp, kerosene powered cuisinart to ruin your day.



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John D. - St. Louis Park, MN.

1965 El Camino - LT-1, 4L60e, 4wh discs, SC&C susp.
2013 F-150 Platinum - Twin Turbo 3.5

2018 Factory Five MkIV Roadster build thread
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