THRUST BEARING - When you depress the clutch pedal, the clutch fork engages the pressure plate with a thrust bearing, also known as a release bearing or throw-out bearing.
PRESSURE PLATE - The clutch pressure plate is an essential component of the clutch system in your manual vehicle. It is a heavy metal plate operated by springs and a lever. Its primary function is to apply pressure to the primary clutch plate (or clutch disc), keeping it in contact with the engine flywheel.
SLAVE CYLINDER - The clutch slave cylinder is essential in vehicles with manual transmissions. When the pedal is pressed, the slave cylinder works in conjunction with the clutch master cylinder to disengage the clutch and shift the transmission.
CLUTCH FLUID - Clutch fluid is really just brake fluid that is kept in the clutch master cylinder. When you depress the clutch pedal, this fluid flows from the clutch master cylinder into the slave cylinder. The pressure of the fluid is then used to engage the clutch, which allows you to change gears
TRANSMISSION FLUID - Automatic transmission fluid is a kind of transmission fluid used in vehicles with self-shifting or automatic transmissions. It is typically coloured red or green to distinguish it from motor oil and other fluids in the vehicle.
In general, a car clutch should last anywhere between 30,000 and 100,000 miles. However, depending on the above variables, clutches can last more or less mileage. If you are worried about the clutch and have noticed any of these signs you need to change your clutch, then take it to a mechanic for a second opinion. Replacing your own clutch can be difficult at best. On a rear-wheel drive vehicle, the driveshaft, transmission and bellhousing have to be removed from underneath the vehicle to get to the clutch.