hi all i was driving to work this morning and was stopped at traffic lights, as i took off again when i changed from first to second heard a clunk that sounded like it came from under my feet, as i get over 3,000 revs a grinding noise started nothing at low revs just going over around 3,000 in any gear, stuck in work all day with the car outside an my head wrecked any suggestions wound b greatly appreciated oh its a 156 1.6