As was stated the engine is a sealed engine. It is a stock focus with the only real change from a stock engine is a race cam. The clutch and all it parts are stock and can be bought at any auto parts store. A focus car has a large collar (for lack of technical name)that mounts to the motor plate (inside of cockpit) in which the clutch slave cylinder is mounted (outside of cockpit). A special focus u-joint is needed which fits through the collar (through a bearing) into the engine. The torque tube housing is bolted to the collar. The slip yoke portion of the u-joint as well as the driveshaft are standard midget parts so the driveshaft fits into the rearend like any other midget. Hope this helps