2004 cv8 vibration

[Simonholden]

Hi all
After some helpful advice and it’s a long story 😂
I bought my lovely cv8 about 6 months ago and it’s spent more time in the garage than me driving it 😥
The long story:

I have a vibration from 32mph to about 50mph. It all started when I gave it to a garage to change the prop shaft centre bearing. They gave it back and it vibrated like hell, they then sent the prop to Wimborne for balancing now it is less but is still there. Another garage has looked at it and found that they fitted the rubber donut the wrong way around, this has still not fixed the problem.
I have had the wheels rebalanced and all ok there, only thing I can think off is to get the prop balanced again at a different place. But fed up of wasting money chasing the problem.
Anyone had any experience of this or any suggestions
Thanks Simon

[Simonholden]

Thanks for that. I am based in Weymouth Dorset so any recommendations for garages with Monaro experience would be much appreciated.
The garage had mentioned the gearbox mount was worn so I need to source one of those as well