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Driveline Vibration(s) ?
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<blockquote data-quote="slideshow86" data-source="post: 1460236" data-attributes="member: 18900"><p>I just got done going through a bunch of this. </p><p></p><p>The u joints will ALWAYS vibrate. It is REQUIRED to have good angles on both ends of the shaft. No matter what. </p><p></p><p>What I mean is this, Say you have a single (NON spicer/cardon/cv joint) u joint shaft on both ends. The top ujoint shakes with X amount of vibration, it takes matching the angle at the other end to absorb ALL of the vibration send from the other u joint. Its just the way it works, call it flaw of design. The ONLY way to not have a ujoint vibrat is have it work at zero working angle. You and I know, **** aint possible. So you just gotta match it as best possible. </p><p></p><p>Now, your dealing with a spicer,cardon or cv joint. It is designed to point the pinion (of rear or front diff) straight up at the transfer. Your spicer,cardon or cv joint will split the crazy angle up top in two. </p><p></p><p>The deviation of this is UNDER LOAD conditions. When under load with waggy springs you get axle wrap. this wrap changes pinion angle. Changing the angle makes the recieving ujoint no longer able to absorb the "sent" vibration. This is what "I" think your feeling. </p><p></p><p>Hope this helps, If you do a little searching there some REALLY good websites that really explain this and show pix. I just kinda summed it up. </p><p></p><p>If you can post a pic of both joints, im sure we could suggest some changes to achieve less vibes.</p></blockquote><p></p>
[QUOTE="slideshow86, post: 1460236, member: 18900"] I just got done going through a bunch of this. The u joints will ALWAYS vibrate. It is REQUIRED to have good angles on both ends of the shaft. No matter what. What I mean is this, Say you have a single (NON spicer/cardon/cv joint) u joint shaft on both ends. The top ujoint shakes with X amount of vibration, it takes matching the angle at the other end to absorb ALL of the vibration send from the other u joint. Its just the way it works, call it flaw of design. The ONLY way to not have a ujoint vibrat is have it work at zero working angle. You and I know, **** aint possible. So you just gotta match it as best possible. Now, your dealing with a spicer,cardon or cv joint. It is designed to point the pinion (of rear or front diff) straight up at the transfer. Your spicer,cardon or cv joint will split the crazy angle up top in two. The deviation of this is UNDER LOAD conditions. When under load with waggy springs you get axle wrap. this wrap changes pinion angle. Changing the angle makes the recieving ujoint no longer able to absorb the "sent" vibration. This is what "I" think your feeling. Hope this helps, If you do a little searching there some REALLY good websites that really explain this and show pix. I just kinda summed it up. If you can post a pic of both joints, im sure we could suggest some changes to achieve less vibes. [/QUOTE]
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