AT-50 A340E(Others) AUTOMATIC TRANSMISSION - OVERDRIVE DIRECT CLUTCH (b) Using a screwdriver, install the snap ring. AT8135 4. INSTALL RING GEAR FLANGE TO OVERDRIVE PLANETARY RING GEAR (a) Install the ring gear flange. AT8134 (b) Using a screwdriver, install the snap ring. AT8133 5. INSTALL OVERDRIVE DIRECT CLUTCH PISTON (a) Coat the new O-rings with ATF and install them on the O/D direct clutch piston. (b) Being careful not to damage the O-rings, press in the direct clutch piston into the clutch drum with both hands. AT8144 6. INSTALL PISTON RETURN SPRING (a) Install the piston return spring to the piston. AT8145