AT-107 A340E(Others) AUTOMATIC TRANSMISSION - COMPONENT PARTS INSTALLATION AT5158 (d) face the snap ring upward (front side) and install the se- cond brake drum to the planetary gear. NOTICE: Face the oil hole in the drum towards the lower side of the transmission case (the side the valve body is installed). Wooden Blocks D5026 Z05131 (e) Align the splines of the transmission case and the as- sembled rear planetary gear, first and reverse brake and output shaft, indicated by A. SST AT5396 (f) Install the assembled output shaft. Y 004066 (g) Rest the output shaft on wooden blocks. A Y 004068 (h) Using SST, install the snap ring. SST 09350-30020 (09350-07060)