any X GM4 20 1979 80 M38 TRANSMISSION INTERNAL COMPONENTS THM350 1 SHAFT Trans Input 4 4 4 44 4 123 2 HOUSING Forward Clutch 4 68 3 SEAL Forward Clutch Piston lnner 1 N S 4 SEAL Forward Clutch Piston Outer I N S 5 PISTON Forward Clutch 4 188 6 SEAT ASM Forward Clutch Piston W Springs 4 184 7 RING Forward Clutch Piston Return Spring Seat Retainer 4 I84 8 WASHER Input Ring Gear Thrust Front 4 I58 8 GEAR Input Ring 4 158 10 BUSHING Input Ring Gear 4 I58 1 I SPRING Forward Clutch Piston Cushion 4 I64 12 PLATE Forward Clutch Drive Steel 4 I63 I3 PLATE Forward Clutch Pressure Steel 4 163 I4 RING Forward Clutch Pressure Plate Retainer 4 187 15 PLATE Forward Clutch Driven Faced 4 183 I8 BEARING Output Carrier 4 178 I7 CARRIER ASM Output 4 175 I8 RUSHING Reaction Carrier Planet 4 176 I9 GEAR Sun 4 159 20 BUSHING Sun Gear to Output Shaft 4 176 2I RING Sun Gear Drive Shell Retainer 4 176 22 SHELL Sun Gear Drive 4 175 23 WASHER Sun Gear Thrust 4 178 24 WASHER Sun Gear Shell Rear Thrust 4 176 25 RACE Low Reverse Overrun Clutch 4 180 28 CLUTCH Low Reverse Overrun 4 180 27 nina Low a news ciuwn to cum nmaner use 28 RING Low St Reverse Clutch Supt to Case 4 180 29 SUPPORT ASM Low Reverse Clutch 4 162 30 PLATE Low Reverse Clutch Drive Faced 4 163 3I CARRIER Reaction Planet 4 175 32 BEARING Output Ring Gear Thrust Frqnt 4 178 33 BEARING KIT Output Ring Gear Bearing 4 187 34 BUSHING Case to Output Shaft 4 104 35 BEARING Output Ring Gear Rr Thrust 4 176 36 RING Low Reverse Clutch Piston Return Spring Seat Ret 4 184 37 PLATE Low Reverse Clutch Reaction Steel 4 183 38 SPRING Low Reverse Clutch Suppon Retainer 4 180 38 SEAT ASM Low Reverse Clutch Piston Return W Springs 4 184 40 PISTDN Low St Reverse Clutch 4 166 41 SEAL KIT Low Reverse Clutch Piston 4 166 42 RING Output Carrier Retainer to Output Shaft 4 I7S 43 BUSHING Output Shaft 4 176 44 SHAFT ASM Output 4 175 45 CLIP Speedometer Drive Gear to Output Shaft 4 345 48 GEAR Speedometer Drive 4 343 47 WASHER Input Ring Gear Rr Thrust 4 156 NOTE 1 Included in SEAL I IT 4 166 v WAREHOUSlNG AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION LT TRUCK 52A 1 84 20 4 000 GROUP