"Hi guys! I've been wondering about getting my shaft balanced on my car. I found this article , and it got me curious, is it necessary at all?

Balancing is pretty expensive. Maybe it's not worth the hassle, and replace the drive shaft every few years. Or is the vibration truly damaging that it's a smart investment?"
Article : <a href=http://electrosvyaz.com/forum/go.php?http://www.musicnews1.org/go?https://maps.google.com.ua/url?rct=j&sa=t&url=http%3A%2F%2Fimages.google.ml%2Fu Shaft imbalance </a>