GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Transmission Major Component Locations


Object Number: 178692  Size: LF
(1)Torque Converter Housing
(2)Torque Converter
(3)Turbine Shaft
(4)Oil Pump Assembly
(5)Adapter Case
(6)Overdrive Clutch Roller Assembly
(7)Overrun Clutch Plate Assembly
(8)Overdrive Complete Carrier Assembly
(9)Reverse Clutch Plate Assembly
(10)2nd Clutch Plate Assembly
(11)Main Case
(12)3rd Clutch Plate Assembly
(13)Sprag, Cage Assembly
(14)Extension Housing
(15)Output Shaft
(16)Speed Sensor Assembly
(17)Drive Flange
(18)Speedo Wheel
(19)Parking Lock Wheel
(20)Band Assembly
(21)Servo Piston Assembly
(22)Planetary Carrier Assembly
(23)Detent Lever
(24)Center Support
(25)Main Case Valve Body Assembly
(26)4th Clutch Plate Assembly
(27)Adapter Case Control Valve Assembly
(28)TCC Solenoid Assembly
(29)Converter Pump Assembly
(30)Stator
(31)Turbine Assembly
(32)Pressure Plate
Figure 2:

Bushing and Bearing Locations


Object Number: 178688  Size: LF
(1)Converter Clutch Assembly
(1)Converter Clutch Assembly
(10)Oil Pump Assembly
(10)Oil Pump Assembly
(30)Center Support Assembly
(30)Center Support Assembly
(36)Main Case
(51)Needle/Extension Bearing
(510)Overrun Clutch Housing
(525)Overdrive Carrier Assembly
(527)Thrust Bearing Assembly
(634)3rd Clutch Drum Assembly
(645)Input Shaft/Sun Gear Bearing Assembly
(651)Output Shaft/Input Sun Gear Bearing
(652)Output Shaft/Input Sun Washer
(659)Reaction Sun Drum
(675)Thrust Bearing Assembly
Figure 3:

Seal Locations


Object Number: 368957  Size: LF
(3)Converter Housing Seal Assembly
(8)O-ring Seal
(8)O-ring Seal
(19)3-4 Accumulator Piston Ring
(32)Oil Seal Ring
(38)Breather Seal Assembly
(44)Speed Sensor Seal
(48)Drive Flange Seal
(50)Extension Assembly Seal
(98)Servo Piston Seal Ring
(314)1-2 Accumulator Piston Ring
(505)Turbine Shaft Seal
(508)Turbine Shaft Oil Seal Ring (Scarf Cut)
(513)Overrun Clutch Piston
(533)4th Clutch Piston (Inner) Seal
(534)4th Clutch Piston (Outer) Seal
(535)Turbine Shaft Oil Seal Ring (Solid)
(608)Reverse Clutch Piston (Inner) Seal
(609)Reverse Clutch Piston (Outer) Seal
(620)2nd Clutch Piston (Inner) Seal
(621)2nd Clutch Piston (Outer) Seal
(635)3rd Clutch Piston (Inner) Seal
(637)3rd Clutch Piston (Outer) Seal
(667)Governor Hub Seal Ring
Figure 4:

Thrust Washer Locations


Object Number: 377427  Size: LF
(12)Selective Thrust Washer
(15)Selective Thrust Washer
(529)Internal Gear Support/Thrust Washer
(631)2nd/3rd Clutch Thrust Washer
(632)Clutch Hub Retainer
(644)Input Sun Gear Thrust Washer
(652)Output Shaft/Input Sun Gear Washer