Quote:
Originally Posted by barry12345
I was concerned more with the aspect. If the coupling nut has to be loose somewhat to get rid of a vibration. Where I thought by design the spline that allows length adjustments.Was just to cover manufactures parts tollerances.
It almost sounds to me that the poster with the issue somehow had the driveshaft a little longer than it should have been somehow. When he initially locked it down. This might occur if you were using your wrenches to tighten the coupling with a vertical force component. The tightning force is perhaps applied better in a hoizontal direction.
Pre lockdown the spline slide should be pretty free moving. As for removal of the driveshaft I have always used the reduction of length approach.
The only thing to be said for what the poster of not using the slip ability did. The past driveline length is preserved. It just sounds like a royal pain to deal with the Driveshaft in that fashion.
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My observation is that the yoke with the splines on it is extremely hard and I learned that when marked it with tungsten carbide scribe which took a lot of effort to get mark on it. (not I did not rely on those cast factory marks I match marked both the collar nut end and the yoke end.)
On the other hand the part that the collar nut squeezes seemed to be soft and springy and I easily used a center punch and punched a mark on it.
That make me think that tightening it could warp it.
Also we don't know if the splines inside were worn as some have had happen.