You have to pull apart the engine and transmission. If your asking this question, I would belive the best way to replace the cutch is taking it to the repair shop.
Clutch.
This is a summarized explanation; it is recommended you consult the repair manual for vehicle or consult a transmission shop.
On a rear-wheel drive vehicle, the driveshaft, transmission...
If you really need to ask this question? Then, I suggest you take your car to A repair shop.
It is not easy to do this job, And if you are not experienced in pulling motors and trannys it will be A...