AT-94 AUTOMATIC TRANSMISSION — Component Parts (Second Coast Brake) ASSEMBLY OF SECOND COAST BRAKE PISTON 1. SELECT PISTON ROD If the hand is OK with piston rod stroke not within the stan- dard value, select the piston rod. There are two different lengths for piston rod. Piston rod length: 71.4 mm (2.811 in.) 72.9 mm (2.870 in.) 2. ASSEMBLE SECOND COAST BRAKE PISTON (a) Coat the oil seal ring with ATF and install it to the se- cond coast brake piston. (b) Install the retainer, spring and piston to the piston rod. (c) Install the E-ring. D5634 Oil Seal Ring Piston Rod Retainer Spring Second Coast Brake Piston D5635