hi ppl, suddenly got his problem within the last couple days, about 45-50mph in 5th or 6th gear if i floor it and the power kicks in theres a bad vibration from the passenger side!! im 90% sure its coming from the gearbox , i got a feeling my flywheel could be knackerd,i know my car has a silly dual mass one. Anyone had this problem before ?? once the revs pick up and go threw the vibration it clears and its fine much higher up the revs.