GM4 21 1976 81 THM350 THM250C A T CONTROL VALVE M31 M33 M38 1 ROD Intermediate Servo Apply 4 228 2 SPRING Intermediate Servo Piston 4 233 3 SEAT Intermediate Servo Piston Spring 4 233 4 WASHER Intermediate Servo Piston 4 228 5 PISTON Intermediate Servo 4 228 6 SEAL Intermediate Servo Piston 4 229 7 RING Direct Clutch Accumulator Piston Retainer 4 229 8 PISTON Direct Clutch Accumulator 4 228 9 SEAL Direct Clutch Accumulator Piston 4 229 10 SPRING Direct Clutch Accumulator Piston 4 233 11 BALL Check Valve 4 265 12 GASKET Valve Body Upper 4 265 13 PLATE Valve Body Spacer 4 265 14 SUPPORT Valve Body Spacer Plate 4 265 15 BOLT Support to Case 5 16x18x3 4 N S 16 GASKET Valve Body Lower 4 265 17 VALVE Detent Regulator N S 18 SEAT Detent Regulator Valve Spring N S 19 SPRING Detent Regulator Valve N S 20 PIN Detent Regulator Valve Retainer N S 21 VALVE Manual ILow Control N S 22 SPRING Manual Low Control Valve N S 23 PLUG Manual Low Control Valve 4 265 24 VALVE 1 2 Shift N S 25 VALVE 1 2 Shift Control N S 26 SPRING 1 2 Shift Control Valve N S 27 SLEEVE 1 2 Shilt Control Valve N S 28 VALVE 2 3 Shift N S 29 SPRING 2 3 Shift Valve N S 30 VALVE 2 3 Shift Control N S 31 SPRING 2 3 Shift Control Valve N S 32 SLEEVE 2 3 Shift Control Valve I N S 33 VALVE Pressure Regulator N S 34 SPRING Pressure Regulator Valve N S 35 VALVE Modulator Reverse Boost Valve N S 36 VALVE Intermediate Boost Valve N S 37 SLEEVE Modulator Reverse Boost Valve N S 38 BOLT Valve Body to Case 5 16x18x1 3 4 N S 39 BOLT Oil Pump Filter to Body 1 4x20x3 8 N S 40 SCREEN KIT W Filter 4 197 41 GASKET Oil Pump Filter 4 197 42 VALVE ASM Manual I 4 265 43 RETAINER Detent Valve Spring N S 44 BOLT Detent Lever Brkt to Body 1 4x20x7 16 N S 45 WIRE Detent Valve Control 4 275 46 PIN Detent Valve Actuating Lever 4 275 47 LEVER Detent Valve Actuating 4 279 48 BRACKET Detent Valve Actuating Lever 4 275 49 STOP Detent Valve N S ISO SEAT Detent Valve Spring N S IS1 SPRING Detent alve N S 52 VALVE Detent N S 53 BODY Valve 4 265 54 LINK Manual Valve Control 4 275 t 1987 GENERAL MOTORS SERVICE PARTS OPERATl0NS OLDSMOBILE 31A T 7 87 4 71 4 000 GROUP