Front Clutch

Front clutch is engaged at 3rd gear of D range and R range. When it is engaged, reverse sun gear of the planetary gear rotates.

Power flow: 

Input shaft → Rear clutch retainer → Front clutch → Kick-down drum → Reverse sun gear → Long pinion → Ring gear → Transfer driven gear

Fig 1: Power Flow Diagram (Front Clutch)

Courtesy of HYUNDAI MOTOR CO.