As per the title guys, I'm getting a rear vibration which I can feel through the seat @ 80mph+ and it doesn't clear. On a scale of 1-10 (10) being severe....I would say it's a 4-5. I have had the rear wheels balanced x3 times by different tyre places and they are spot on, no buckles, everything is round and true. Also had the tracking and camber done so everything is now where it should be. Tyres are also fine, no bulges, splits etc.
Any ideas on what could be causing this?......anybody had this with their car?
Cheers
Justin