GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 Aztek - AWD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 Component Location
Figure 1:

Transmission Major Components
Object Number: 53813 Size: LF
(1)Oil Pump Assembly
(2)Case Cover Assembly
(3)Control Valve Body Assembly
(4)Drive Sprocket
(5)Torque Converter Assembly
(6)Reverse Band Assembly
(7)Third Clutch Pawl Assembly
(8)Input Clutch Pawl Assembly
(9)Input Carrier Assembly
(10)2-1 Manual Band Assembly
(11)Reaction Carrier Assembly
(12)1/2 Support Roller Clutch Assembly
(13)Vehicle Speed Sensor Assembly
(14)Final Drive/Differential Carrier Assembly
(15)Forward Band Assembly
(16)2-1 Manual Band Servo Assembly
(17)Input Clutch Assembly
(18)Third Clutch Assembly
(19)Second Clutch Assembly
(20)Oil Filter Assembly
(21)Driven Sprocket Support Assembly
(22)Driven Sprocket
(23)Drive Link Assembly
(24)Fourth Clutch Assembly
(25)Output Shaft
Figure 2:

Case Side Cover Bolts
Object Number: 330231 Size: MF
(56)Side Cover Bolt/Screw M8 X 1.25 X 25.0 (9)
(57)Side Cover Bolt/Screw M8 X 1.25 X 21.0 (4)
(58)Side Cover Bolt/Screw M8 X 1.25 X 24.0 (4)
Figure 3:

Oil Pump Bolts - 2 Piece Pump
Object Number: 840833 Size: LF
(205)Oil Pump Cover to Oil Pump Body Bolt/Screw M6 X 1.0 X 20.0 (1)
(206)Oil Pump to Case Bolt/Screw M6 X 1.0 X 95.0 (2)
(207)Oil Pump to Case Cover Bolt/Screw M6 X 1.0 X 87.5 (9)
Figure 4:

Oil Pump Bolts - 3 Piece Pump
Object Number: 893319 Size: LF
(230)Pump Body to Case Bolt M6 X 1.0 X 95.0 (2)
(230)Pump Body to Case Bolt M6 X 1.0 X 95.0 (2)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
Figure 5:

Control Valve Body Bolts
Object Number: 840834 Size: LF
(374)Control Valve Body Bolt/Screw M6 X 1.0 X 65.0 (3)
(375)Control Valve Body Bolt/Screw M6 X 1.0 X 60.0 (2)
(376)Control Valve Body Bolt/Screw M6 X 1.0 X 30.0 (1)
(377)Control Valve Body Bolt/Screw M6 X 1.0 X 45.0 (2)
(378)Control Valve Body Bolt/Screw M6 X 1.0 X 55.0 (3)
(379)Control Valve Body Bolt/Screw M6 X 1.0 X 87.5 (1)
(380)Control Valve Body Bolt/Screw M8 X 1.0 X 90.0 (1)
(381)Control Valve Body Bolt/Screw M6 X 1.0 X 20.0 (1)
(384)Control Valve Body Bolt/Screw M6 X 1.0 X 85.0 (1)
Figure 6:

Case Cover Bolts
Object Number: 51150 Size: LF
(433)Case Cover Bolt/Screw TORX® Plus Special M6 X 1.0 X 32.0 (1)
(434)Case Cover Bolt/Screw M6 X 1.0 X 40.0 (3)
(435)Case Cover Bolt/Screw M8 X 1.25 X 50.0 (3)
(436)Case Cover Bolt/Screw M6 X 1.0 X 30.0 (3)
(805)Case Cover Bolt/Screw M6 X 1.0 X 16.0 (1)
Figure 7:

Bottom Pan, Accumulator Cover and Manual 2-1 Band Servo Cover Bolts
Object Number: 262443 Size: LF
(23)Transmission Oil Pan Bolt M6 X 1.0 X 17.0 (20)
(103)2-1 Manual Band Servo Cover Bolt/Screw M8 X 1.25 X 25.0 (3)
(131)Accumulator Cover Bolt/Screw M6 X 1.0 X 28.0 (11)
Figure 8:

Thrust Washers
Object Number: 51129 Size: LF
(432)Fourth Clutch Shaft Thrust Washer
(505)Fourth Clutch Shaft Thrust Washer
(508)Driven Sprocket Thrust Washer
(514)Drive Sprocket Thrust Washer
(517)Drive Sprocket Thrust Washer
(611)Second Clutch Housing Thrust Washer
(630)Input Clutch Housing Thrust Washer Selective
(691)Final Drive Gear Internal Thrust Washer
(703)Differential Pinion Thrust Washer
(706)Differential Side Gear Thrust Washer Bronze
(708)Planetary Pinion Gear Thrust Washer Steel
(714)Differential Carrier/Case Thrust Washer
Figure 9:

Bushings
Object Number: 51133 Size: LF
(2)Torque Converter Bushing
(7a)Front Differential Carrier Bushing M15 and MN3 Models Only
(523)Turbine Shaft Bushing
(614)Second Clutch Housing Bushing
(616)Second Clutch Housing Front Bushing
(619)Second Clutch Housing Rear Bushing
(631)Input Shaft Bushing
(677)Reaction Sun Gear Bushing Left Side
(679)Reaction Sun Gear Bushing Right Side
(686)1-2 Support Drum Bushing
(690)Front Differential Carrier Internal Gear Bushing
Figure 10:

Bearings
Object Number: 51142 Size: LF
(7b)Output Shaft Bearing Assembly MN7 Models Only
(208)Oil Pump Drive Shaft Bearing
(431)Front Wheel Drive Shaft Bearing
(521)Drive Sprocket Bearing Assembly
(606)Driven Sprocket Bearing Assembly
(629)Input Clutch Housing Thrust Bearing Assembly
(644)Input Shaft Thrust Bearing Assembly
(671)Input Sun Gear Thrust Bearing Assembly
(674)Reaction Carrier Thrust Bearing Assembly
(676)Reaction Sun Gear Thrust Bearing Assembly
(685)1-2 Drum Support Thrust Bearing
(695)Front Differential Carrier Internal Gear Thrust Bearing
(698)Front Differential Carrier Sun Gear Thrust Bearing
(709)Front Differential Carrier Planetary Pinion Bearing
(715)Front Differential Carrier Thrust Bearing
(723)Input Clutch Housing Thrust Bearing
Figure 11:

Lip Seals
Object Number: 51144 Size: LF
(4)Front Wheel Drive Shaft Oil Seal Assembly Right Side
(18)Forward Band Servo Piston Oil Seal Ring
(43)Reverse Band Servo Piston Oil Seal Ring
(101)Automatic Transmission Oil Filter Seal
(107)Manual 2-1 Band Servo Piston Seal
(409)Front Wheel Drive Shaft Oil Seal Assembly Left Side
(525)Torque Converter Oil Seal Assembly
(604)Fourth Clutch Piston Seal Outer
(605)Fourth Clutch Piston Seal Inner
(620)Second Clutch Piston and Seal Assembly
(620)Second Clutch Piston and Seal Assembly
(634)Input Clutch Piston Seal Inner
(635)Input Clutch Piston Seal Outer
(641)Third Clutch Piston Seal Inner
(642)Third Clutch Piston and Seal Assembly
(642)Third Clutch Piston and Seal Assembly
(806)Manual Shift Shaft Seal
Figure 12:

Square and O-Ring Seals
Object Number: 51146 Size: LF
(8)Automatic Transmission Case Extension Seal
(11)Vehicle Speed Sensor O-Ring Seal
(14)Forward Band Servo Cover Seal
(41)Reverse Band Servo Cover O-Ring Seal
(105)Manual 2-1 Band Servo Cover Seal
(113)Manual 2-1 Band Servo Piston Cylinder O-Ring Seal
(137a)1-2 Accumulator Piston Oil Seal Ring
(137b)2-3 Accumulator Piston Oil Seal Ring
(212)Automatic Transmission Oil Pump Slide Oil Seal Ring
(213)Automatic Transmission Oil Pump Slide O-Ring Seal
(220)Automatic Transmission Oil Pump Slide Seal
(221)Automatic Transmission Oil Pump Slide Seal Support
(228)Automatic Transmission Oil Pump Drive Shaft Seal
(422)3-4 Accumulator Piston Cylinder O-Ring Seal
(427)3-4 Accumulator Piston Oil Seal
(513)Turbine Shaft Oil Seal Ring
(519)Turbine Shaft Oil Seal Ring
(520)Turbine Shaft O-Ring Seal
(612)Second Clutch Housing Oil Seal Ring Four Lobe Seal
(613)Second Clutch Housing Oil Seal Ring
(628)Input Clutch Housing Oil Seal Ring
(638)Third Clutch Housing O-Ring Seal
(810)Park Pawl Actuator Guide O-Ring Seal
Figure 13:

Gaskets
Object Number: 788710 Size: LF
(25)Oil Pan Gasket
(54)Case Side Cover Gasket
(59)Case Side Cover Inner Gasket
(396)Control Valve Body Spacer Plate and Gasket Assembly
(429)Case Cover Lower Gasket
(430)Case Cover Upper Gasket
Figure 14:

Ball Check Valves
Object Number: 54172 Size: LF
(1)TCC Apply-Release
(2)2nd-2nd Clutch
(3)Input Clutch-PRN
(4)3rd Clutch-Lo/1st
(5)Reverse-Reverse Servo Large
(6)D4-Servo Apply
(7)Lo-Lo/1st
(8)D2-Manual 2-1 Servo Feed
(9)3rd-3rd Clutch
(10)Line-Lo/1st Gear
Figure 1:

Transmission Major Components
Object Number: 53813 Size: LF
(1)Oil Pump Assembly
(2)Case Cover Assembly
(3)Control Valve Body Assembly
(4)Drive Sprocket
(5)Torque Converter Assembly
(6)Reverse Band Assembly
(7)Third Clutch Pawl Assembly
(8)Input Clutch Pawl Assembly
(9)Input Carrier Assembly
(10)2-1 Manual Band Assembly
(11)Reaction Carrier Assembly
(12)1/2 Support Roller Clutch Assembly
(13)Vehicle Speed Sensor Assembly
(14)Final Drive/Differential Carrier Assembly
(15)Forward Band Assembly
(16)2-1 Manual Band Servo Assembly
(17)Input Clutch Assembly
(18)Third Clutch Assembly
(19)Second Clutch Assembly
(20)Oil Filter Assembly
(21)Driven Sprocket Support Assembly
(22)Driven Sprocket
(23)Drive Link Assembly
(24)Fourth Clutch Assembly
(25)Output Shaft
Figure 2:

Case Side Cover Bolts
Object Number: 330231 Size: MF
(56)Side Cover Bolt/Screw M8 X 1.25 X 25.0 (9)
(57)Side Cover Bolt/Screw M8 X 1.25 X 21.0 (4)
(58)Side Cover Bolt/Screw M8 X 1.25 X 24.0 (4)
Figure 3:

Oil Pump Bolts
Object Number: 893319 Size: LF
(230)Pump Body to Case Bolt M6 X 1.0 X 95.0 (2)
(230)Pump Body to Case Bolt M6 X 1.0 X 95.0 (2)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
(231)Pump Cover to Case Cover Bolt M6 X 1.0 X 87.5 (9)
Figure 4:

Control Valve Body Bolts
Object Number: 840834 Size: LF
(374)Control Valve Body Bolt/Screw M6 X 1.0 X 65.0 (3)
(375)Control Valve Body Bolt/Screw M6 X 1.0 X 60.0 (2)
(376)Control Valve Body Bolt/Screw M6 X 1.0 X 30.0 (1)
(377)Control Valve Body Bolt/Screw M6 X 1.0 X 45.0 (2)
(378)Control Valve Body Bolt/Screw M6 X 1.0 X 55.0 (3)
(379)Control Valve Body Bolt/Screw M6 X 1.0 X 87.5 (1)
(380)Control Valve Body Bolt/Screw M8 X 1.0 X 90.0 (1)
(381)Control Valve Body Bolt/Screw M6 X 1.0 X 20.0 (1)
(384)Control Valve Body Bolt/Screw M6 X 1.0 X 85.0 (1)
Figure 5:

Case Cover Bolts
Object Number: 51150 Size: LF
(433)Case Cover Bolt/Screw TORX® Plus Special M6 X 1.0 X 32.0 (1)
(434)Case Cover Bolt/Screw M6 X 1.0 X 40.0 (3)
(435)Case Cover Bolt/Screw M8 X 1.25 X 50.0 (3)
(436)Case Cover Bolt/Screw M6 X 1.0 X 30.0 (3)
(805)Case Cover Bolt/Screw M6 X 1.0 X 16.0 (1)
Figure 6:

Bottom Pan, Accumulator Cover and Manual 2-1 Band Servo Cover Bolts
Object Number: 262443 Size: LF
(23)Transmission Oil Pan Bolt M6 X 1.0 X 17.0 (20)
(103)2-1 Manual Band Servo Cover Bolt/Screw M8 X 1.25 X 25.0 (3)
(131)Accumulator Cover Bolt/Screw M6 X 1.0 X 28.0 (11)
Figure 7:

Thrust Washers
Object Number: 51129 Size: LF
(432)Fourth Clutch Shaft Thrust Washer
(505)Fourth Clutch Shaft Thrust Washer
(508)Driven Sprocket Thrust Washer
(514)Drive Sprocket Thrust Washer
(517)Drive Sprocket Thrust Washer
(611)Second Clutch Housing Thrust Washer
(630)Input Clutch Housing Thrust Washer Selective
(691)Final Drive Gear Internal Thrust Washer
(703)Differential Pinion Thrust Washer
(706)Differential Side Gear Thrust Washer Bronze
(708)Planetary Pinion Gear Thrust Washer Steel
(714)Differential Carrier/Case Thrust Washer
Figure 8:

Bushings
Object Number: 51133 Size: LF
(2)Torque Converter Bushing
(7a)Front Differential Carrier Bushing M15 and MN3 Models Only
(523)Turbine Shaft Bushing
(614)Second Clutch Housing Bushing
(616)Second Clutch Housing Front Bushing
(619)Second Clutch Housing Rear Bushing
(631)Input Shaft Bushing
(677)Reaction Sun Gear Bushing Left Side
(679)Reaction Sun Gear Bushing Right Side
(686)1-2 Support Drum Bushing
(690)Front Differential Carrier Internal Gear Bushing
Figure 9:

Bearings
Object Number: 51142 Size: LF
(7b)Output Shaft Bearing Assembly MN7 Models Only
(208)Oil Pump Drive Shaft Bearing
(431)Front Wheel Drive Shaft Bearing
(521)Drive Sprocket Bearing Assembly
(606)Driven Sprocket Bearing Assembly
(629)Input Clutch Housing Thrust Bearing Assembly
(644)Input Shaft Thrust Bearing Assembly
(671)Input Sun Gear Thrust Bearing Assembly
(674)Reaction Carrier Thrust Bearing Assembly
(676)Reaction Sun Gear Thrust Bearing Assembly
(685)1-2 Drum Support Thrust Bearing
(695)Front Differential Carrier Internal Gear Thrust Bearing
(698)Front Differential Carrier Sun Gear Thrust Bearing
(709)Front Differential Carrier Planetary Pinion Bearing
(715)Front Differential Carrier Thrust Bearing
(723)Input Clutch Housing Thrust Bearing
Figure 10:

Lip Seals
Object Number: 51144 Size: LF
(4)Front Wheel Drive Shaft Oil Seal Assembly Right Side
(18)Forward Band Servo Piston Oil Seal Ring
(43)Reverse Band Servo Piston Oil Seal Ring
(101)Automatic Transmission Oil Filter Seal
(107)Manual 2-1 Band Servo Piston Seal
(409)Front Wheel Drive Shaft Oil Seal Assembly Left Side
(525)Torque Converter Oil Seal Assembly
(604)Fourth Clutch Piston Seal Outer
(605)Fourth Clutch Piston Seal Inner
(620)Second Clutch Piston and Seal Assembly
(620)Second Clutch Piston and Seal Assembly
(634)Input Clutch Piston Seal Inner
(635)Input Clutch Piston Seal Outer
(641)Third Clutch Piston Seal Inner
(642)Third Clutch Piston and Seal Assembly
(642)Third Clutch Piston and Seal Assembly
(806)Manual Shift Shaft Seal
Figure 11:

Square and O-Ring Seals
Object Number: 51146 Size: LF
(8)Automatic Transmission Case Extension Seal
(11)Vehicle Speed Sensor O-Ring Seal
(14)Forward Band Servo Cover Seal
(41)Reverse Band Servo Cover O-Ring Seal
(105)Manual 2-1 Band Servo Cover Seal
(113)Manual 2-1 Band Servo Piston Cylinder O-Ring Seal
(137a)1-2 Accumulator Piston Oil Seal Ring
(137b)2-3 Accumulator Piston Oil Seal Ring
(212)Automatic Transmission Oil Pump Slide Oil Seal Ring
(213)Automatic Transmission Oil Pump Slide O-Ring Seal
(220)Automatic Transmission Oil Pump Slide Seal
(221)Automatic Transmission Oil Pump Slide Seal Support
(228)Automatic Transmission Oil Pump Drive Shaft Seal
(422)3-4 Accumulator Piston Cylinder O-Ring Seal
(427)3-4 Accumulator Piston Oil Seal
(513)Turbine Shaft Oil Seal Ring
(519)Turbine Shaft Oil Seal Ring
(520)Turbine Shaft O-Ring Seal
(612)Second Clutch Housing Oil Seal Ring Four Lobe Seal
(613)Second Clutch Housing Oil Seal Ring
(628)Input Clutch Housing Oil Seal Ring
(638)Third Clutch Housing O-Ring Seal
(810)Park Pawl Actuator Guide O-Ring Seal
Figure 12:

Gaskets
Object Number: 788710 Size: LF
(25)Oil Pan Gasket
(54)Case Side Cover Gasket
(59)Case Side Cover Inner Gasket
(396)Control Valve Body Spacer Plate and Gasket Assembly
(429)Case Cover Lower Gasket
(430)Case Cover Upper Gasket
Figure 13:

Ball Check Valves
Object Number: 54172 Size: LF
(1)TCC Apply-Release
(2)2nd-2nd Clutch
(3)Input Clutch-PRN
(4)3rd Clutch-Lo/1st
(5)Reverse-Reverse Servo Large
(6)D4-Servo Apply
(7)Lo-Lo/1st
(8)D2-Manual 2-1 Servo Feed
(9)3rd-3rd Clutch
(10)Line-Lo/1st Gear