TM10-3930-660-20 10-4. DRIVE SHAFT ASSEMBLY, TRANSMISSION - REPLACE/REPAIR (Cont’d) c.   Apply Loctite 242 to four capscrews (13) . Secure universal joint (5) to yoke (15) with four new lockwashers (14) and four capscrews (13) . Torque capscrews (13) to 41 lb. ft. 4. INSTALL ENGINE COUPLING (9). a. b. c. Install key (11) in groove on shaft assembly  (1). Push coupling (9) on shaft assembly (1). Install key (12) in groove on engine coupling  (9). INSTALLATION 1. 2. 3. 4. 5. INSTALL DRIVE SHAFT ASSEMBLY (1) TO ENGINE  (7). a. b. Position engine coupling (9) with shaft assembly (1) into engine dampener  (7). Apply Loctite 242 to three capscrews (8) and secure coupling (9) to engine with capscrews (8). Tighten capscrews to 25 lb. ft. INSTALL DRIVE SHAFT ASSEMBLY (1) TO TRANSMISSION   (2). a. Apply Loctite 242 to four capscrews (3) . Secure universal joint (5) of shaft assembly (1) to input yoke (6) of transmission (2) with four capscrews (3) and four new lockwashers  (4).   Torque capscrews (3) to 41 lb. ft. APPLY GREASE TO LUBRICATION FITTINGS. INSTALL TRANSMISSION COVER, PARA. 16-6. REMOVE BLOCKING MATERIAL FROM WHEELS. 10-10