well my mechanic says its not gearbox, says it could be tensioner or water pump... i keep saying to him then why does it only do it in gear and when driving>>> theres no sound what so ever in nuetral if it was one of them two wouldnt it be doing it all the time..

also he originally said it was the engine mount because it was knackered
so put a vibra technics one on and it made it worse because there is no play in the mount at all