2003 Cobra: Began with a loud scratching/screetching noise

Might be the clutch but unlikely if only confined to a single gear and it is usually possible to make a faulty clutch produce noise when stationary to help diagnosis.

If the clutch will transmit the full engine torque without slipping there is unlikely to be much wrong with either the centre plate or the cover. Problems with the release mechanism can often be felt through the clutch pedal and clearly be heard to be in sympathy with clutch pedal operation.

I suggest you check the transmission oil level and then look around for other possible causes if another "look" at the clutch produces no results. Auxilliary belt perhaps...

What do you mean when you use it. Do you mean when you push in the clutch pedal?? If so it is likely the throwout bearing is bad.

Check the clutch pedal return spring, which could be broken.

It sounds like a vacuum hose popped off somewhere.

A chirping bird like sound could be a clutch

use a lil, soap in the bar form rubb it on belt or buy some belt dressing for that specific belt.clowny daggers

It sounds like a possible wheel bearing failure.Get it checked at a local repair shop ,or possible loose bearing hub.

HI" does this noise go away when you step on the clutch pedal and does this noise gets louder as you go faster, try turning the steering wheel a little see if noise goes away that would indicate bad wheel bearing

Sounds like it could well be the brake servo unit.

u have a worn out clutch pressure plate release bearing, that is what u feel and hear..