Vibration and Noise Issue

redfastback said

Well, Fishy, my driveshaft guy tells me to always include the front yoke so he can balance it. I have watched him balance them as well. Pretty neat to see how it gets done. He is an older guy that does it all by the book and I have never had a driveshaft built by him that was bad, other places YES. One place even put a 62 Impala shaft out of phase and swore that it would be fine.... yeah right.

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Ok Red. Are you saying he actually assembles the yoke onto the driveshaft and balances it as an assy. or he balances the yoke then balances the driveshaft? All the shops I know of around me balance them independently. I have never had one that was built wrong so I guess I've been lucky. I can certainly understand not aligning the U-joint yokes on the driveshaft properly (which I believe is what you mean by having it out of phase) causing a problem. Other than that I can't for the life of me see how you can install the yoke onto the driveshaft or install the driveshaft itself out of phase. Other than installing the U-joint(s) wrong so you can't access the grease zerk which doesn't actually cause a problem except making it difficult or impossible to grease the U-joint. If I'm missing something one of you guys please enlighten me.