Another thing would be the need to engage and disengage the engine to the gearbox, so that torque and power will be transferred to the vehicle's transmission---faster than one could his eye. The Jeep has been a well-loved, all-purpose vehicle. So it can not sacrifice its reputation in being powerful, efficient, and heavy-duty.
Thus, the Jeep has developed a superb way to master this process, by means of producing great hydraulic pressure. The Jeep Clutch Master Cylinders ensure this. It supplies pressure to both circuits of the car which uses two pistons in the same cylinder in a way that makes the cylinder relatively failsafe. The Jeep Clutch Master Cylinder is located right next to the brake master cylinder. It has a reservoir that holds the fluid used in the clutch hydraulic system. However, its main adversary would be water, because it causes the Jeep's clutch system to rust, therefore causing the Jeep Clutch Master Cylinders to fail.
Preventive measures would be to flush out the hydraulic fluid together with the brake fluid. Also, changing the Jeep clutch slave cylinder would have to mean the replacement of the Jeep Clutch Master Cylinders, too. This is because both units are more likely to fail at the same time. When it needs to be replaced, one must trust only the clutch master cylinder that had survived three wars and almost 70 years of loyal service to America---the Jeep Clutch Master Cylinders. It is made of durable materials that could outlast rough roads and heavy loads, and it is part of the reason why the name Jeep is still a loved part of the culture.
Source: http://www.articlealley.com/article_182894_31.html

