AT-71 A340E (2JZ-GTE) AUTOMATIC TRANSMISSION - FIRST AND REVERSE BRAKE AT0EK-03 FIRST AND REVERSE BRAKE ASSEMBLY O-Ring O-Ring O-Ring AT5376 1. INSTALL NO.1 BRAKE PISTON (a) Coat the 3 new O-rings with ATF. (b) Install the 2 O-rings on No.1 brake piston. (c) Install the O-ring on the reaction sleeve. (d) Install the No.1 brake piston to the reaction sleeve. Reaction Sleeve No. 1 Brake Piston D4896 Z05194 2. INSTALL REACTION SLEEVE AND NO.1 BRAKE PIS- TON TO TRANSMISSION CASE With the No.1 brake piston underneath (the rear side), install the brake reaction sleeve and No.1 brake piston to the transmission case. NOTICE: Be careful not to damage the O-rings. No. 2 Brake Piston D4897 Z05195 3. INSTALL NO.2 BRAKE PISTON (a) Coat the a new O-ring with ATF. (b) Install the O-ring on No.2 brake piston. (c) With the spring seat of the piston upwards (the front side), place the piston in the transmission case. NOTICE: Be careful not to damage the O-rings. AT5429 (d) Place the piston return spring onto the No.2 brake piston. SST Snap Ring D4890 AT3152 Z05132 4. INSTALL PISTON RETURN SPRING (a) Place SST on the spring retainer and compress the return spring. SST 09350-30020 (09350-07050) (b) Using SST, install the snap ring. SST 09350-30020 (09350-07070)