My moms tigershark driveshaft has a huge vibration. Help!!

[Scorn800]

I thought you built race skis?
How come a race mechanic can not figure out this simple problem?
Is tigershark the only ski with a floating driveshaft?

 

[yamanube]

Just swap that rubber tube for some schedule 80 and call it a day.

 

[ThatGuy]

I think it was Craig. Anyway he's your guy. Find him problem solved.