Just took the tri into mitsi dealer to see what they could do about the shudder I am getting. They took it for a drive and had a look underneath.
When I went to pick the car up they told me they have ordered a new tailshaft.
there is a hotfix for this but I don't have the numbers yet.
The guy also said it was a characteristic of the car but we will replace it for you.
I was surprised that they are doing this as I have efs suspension. But it is a minimal lift so it doesn't affect warranty.