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

Transmission Case (1 of 2)


Object Number: 38213  Size: LF
(1)Reverse Synchronizer Spring
(2)Reverse Synchronizer Sleeve
(3)Reverse Synchronizer Hub
(4)Reverse Synchronizer Key
(5)Reverse Synchronizer Spring
(6)Reverse Synchronizer Key Retainer
(7)Vent
(8)Vent Pipe
(9)Offset Lever Roll Pin
(10)Offset Shift Lever
(11)Top Shift Shaft Bushing
(12)Cover Plate Bolt
(13)Cover Plate
(14)Transmission Case
(15)6th Speed Drive Gear Bearing Spacer
(16)6th Speed Drive Gear
(17)6th Speed Drive Gear Needle Bearing
(18)6th Speed Drive Gear Synchronizer Blocking Ring
(19)6th Speed Drive Gear Bearing Spacer
(20)Synchronizer Retainer Ring
(21)Reverse Shift Fork Retainer Ring
(22)Reverse Shift Fork
(23)Reverse Shift Fork Pad
(24)Guide Plate
(25)Guide Plate Bolt
(26)Shift Detent Ball
(27)Shift Detent Ball Spring
(28)5th and 6th Speed Driven Gear
(29)Reverse Synchronizer Hub and Sleeve
(30)Reverse Gear Thrust Washer
(31)Reverse Synchronizer Retainer Ring
(32)Reverse Synchronizer Blocking Ring
Figure 2:

Transmission Case (2 of 2)


Object Number: 105702  Size: LF
(1)Case Rear Extension Pin
(2)5th/6th Lever Guide Bolt
(3)Interlock Guide Bolt
(4)Computer Aided Gear Select Solenoid
(5)Oil Fill Plug
(6)Countershaft Bearing Race
(7)Backup Lamp Switch
(8)Magnet
(9)Shift Detent Switch
(10)Mainshaft Rear Bearing Race
(11)Mainshaft Rear Bearing
(12)1st Speed Drive Gear
(13)1st Speed Drive Gear Needle Bearing
(14)Synchronizer Retainer Ring
(15)Thrust Washer
(16)1st Speed Gear Inner Cone
(17)1st Speed Drive Gear Friction Cone
(18)1st Gear Synchronizer Blocking Ring
(19)1st/2nd Synchronizer Assembly
(20)2nd Gear Synchronizer Blocking Ring
(21)1st/2nd Synchronizer Spring
(22)1st/2nd Synchronizer Key
(23)1st/2nd Synchronizer Hub
(24)1st/2nd Synchronizer Sleeve
(25)1st/2nd Synchronizer Spring
Figure 3:

Adapter Plate and Gears


Object Number: 351935  Size: LF
(1)3rd/4th Synchronizer Spring
(2)3rd/4th Synchronizer Sleeve
(3)3rd/4th Synchronizer Hub
(4)3rd/4th Synchronizer Key
(5)3rd/4th Synchronizer Spring
(6)Cylinder Assembly Clutch Slave
(7)Cylinder Assembly Clutch Slave Bolt
(8)Adapter Plate Inspection Plug
(9)Adapter to Transmission Case Bolt
(10)Adapter Plate Dowel Pin
(11)Front Adapter Plate
(12)Dowel Pin
(13)Top Shaft Rail Bushing
(14)Input Shaft Seal
(15)Input Shaft Bearing Shim
(16)Input Shaft Bearing Race
(17)Input Shaft Bearing
(18)Input Shaft
(19)Input Shaft Bearing Race
(20)Mainshaft Small Tapered Bearing
(21)4th Speed Drive Gear Blocker Ring
(22)Retainer Ring
(23)3rd/4th Synchronizer Assembly
(24)3rd Gear Blocking Ring
(25)3rd Speed Drive Gear
(26)3rd Speed Gear Bearing Spacer
(27)3rd Speed Drive Gear Bearing
(28)Mainshaft
(29)2nd Speed Drive Gear Needle Bearing
(30)2nd Speed Drive Gear
(31)Thrust Washer
(32)1st/2nd Drive Gear Inner Cone
(33)1st/2nd Drive Gear Friction Cone
(34)Countershaft Bearing Adjust Shim
(35)Countershaft Bearing Race
(36)Countershaft Front Bearing
(37)Countershaft
(38)Countershaft Rear Bearing
Figure 4:

Extension Housing


Object Number: 351937  Size: LF
(1)Mainshaft Bearing Race
(2)Mainshaft Rear Bearing Retainer Ring
(3)Speedometer Sensor Gear Retainer Ring
(4)Speedometer Sensor Gear
(5)Speedometer Sensor Gear Retainer Ring
(6)Mainshaft Rear Bearing Retainer Ring
(7)Mainshaft Gear Bearing Spacer
(8)Mainshaft Rear Bearing
(9)Mainshaft Gear Bearing Spacer
(10)Synchronizer Retaining Ring
(11)Reverse Gear Thrust Washer
(12)Mainshaft Reverse Speed Gear
(13)Reverse Gear Needle Bearings
(14)Reverse Gear Washer
(15)Reverse Idler Gear Shaft
(16)Reverse Idler Gear Needle Bearing
(17)Reverse Idler Gear
(18)Reverse Idler Bracket
(19)Reverse Idler Bracket Bolt
(20)5th Gear
(21)5th Gear Synchronizer Blocking Ring
(22)5th/6th Synchronizer Assembly
(23)5th/6th Synchronizer Spring
(24)5th/6th Synchronizer Hub
(25)5th/6th and Reverse Synchronizer Key
(26)5th/6th Synchronizer Sleeve
(27)5th Synchronizer Spring
(28)5th/6th Gear Shift Fork Retainer Ring
(29)5th Gear Shift Fork
(30)Fork Pad
(31)5th Gear Needle Bearing
(32)Countershaft Extension
(33)Countershaft Extension Bearing
(34)Countershaft Extension Bearing Race
(35)Countershaft Extension Bearing Shim
(36)Lubrication Funnel
(37)Oil Drain Plug
(38)Extension Housing to Transmission Case Bolt
(39)Mainshaft Seal
Figure 5:

Reverse Lockout


Object Number: 490791  Size: LF
(1)Snap Ring
(2)Reverse Lockout
(3)Reverse Lockout Outer Spring
(4)Reverse Lockout Seat
(5)Snap Ring
(6)Reverse Lockout Inner Spring
(7)Reverse Lockout Body
(8)Reverse Lockout Solenoid Mounting Bolt
(9)Reverse Lockout Solenoid
(10)Speed Sensor Bolt
(11)Speed Sensor
(12)Transmission Extension
(13)Bumper
(14)Reverse Lockout Assembly
(15)Reverse Lockout O-ring Seal
(16)Bushing
(17)Offset Shift Lever
(18)Offset Shift Lever Pin
(19)Isolator Cup
(20)Optional Shifter Bolt (25 mm) (.98 in)
(21)Optional Shifter
(22)Standard Shifter Bolt (20 mm) (.80 in)
(23)Standard Shifter
Figure 6:

Shift Shafts


Object Number: 71807  Size: LF
(1)1st/2nd Shift Fork
(2)Shift Shaft
(3)1st/2nd Shift Fork Pin
(4)Control Select Arm Pin
(5)Gear Select Interlock Plate
(6)3rd/4th Shift Fork
(7)3rd/4th Shift Fork Pad
(8)Offset Shift Lever
(9)Reverse Shift Lever Pin
(10)5th/6th Shift Lever Pad
(11)Retaining Ring
(12)5th/6th Shift Shaft Lever Bushing
(13)5th/6th Shift Lever
(14)5th/6th Shift Shaft Lever Bushing
(15)5th/6th Reverse Shift Shaft
(16)Collar
(17)Reverse Shift Collar Pin
(18)5th/6th Shift Lever Assembly
(19)1st/2nd Shift Shaft Assembly
(20)Shift Interlock Plate
(21)Interlock Shift Plate
(22)1st/2nd Shift Fork Pad