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

Transmission Case and Gear Sets


Object Number: 100514  Size: LF
(1)Countershaft Rear Bearing
(2)Pin
(3)Transmission Countershaft
(4)Counter Gear Key
(5)3RD Counter Gear
(6)Counter Drive Gear
(7)Transmission Flat Washer
(8)Countershaft Front Bearing
(9)Reverse Idler Gear Shaft
(10)Reverse Idler Gear Washer
(10)Reverse Idler Gear Washer
(11)Reverse Idler Gear Bearing
(12)Reverse Idler Gear Bearing Spacer
(13)Reverse Idler Gear
(14)Retainer Bolt
(15)Main Drive Gear Retainer
(16)Main Drive Gear Seal
(17)Main Drive Gear Cup
(18)Countershaft Bearing Cap
(19)Countershaft Front Bearing Cup
(20)PTO Cover Screw
(21)PTO Cover
(22)Transmission Case
(23)Countershaft Rear Bearing Cup
(24)Countershaft Bearing Shim
(25)Countershaft Thrust Washer
(26)Overdrive Gear Bearing
(27)Overdrive Gear Bearing Spacer
(28)Countershaft Bearing Retainer Plate
(29)Bearing Retainer Plate Bolt
(29)Bearing Retainer Plate Bolt
(30)Countershaft Overdrive Gear
(30)Overdrive Synchronizer Key
(31)Synchronizer Spring
(32)Overdrive Synchronizer Sleeve
(33)Overdrive Synchronizer Ring
(34)Overdrive Clutch Gear
(35)5TH Gear Retaining Ring
(37)Overdrive Fork Pad
(38)Overdrive Fork
(39)Overdrive Lug Pin
(40)5TH Shift Shaft
(41)Mainshaft Bearing Retainer Plate
(42)Mainshaft Bearing Shim
(43)Mainshaft Rear Bearing Cup
(44)Transmission Chip Collector Magnet
(45)Transmission Chip Collector Magnet Clip
Figure 2:

Main Drive Gear and Mainshaft Gear Sets


Object Number: 103123  Size: LF
(1)Speedometer Drive Magnetic Rotor
(2)Mainshaft Overdrive Gear
(3)Mainshaft Gear Bearing
(4)Reverse Gear Thrust Washer
(5)Mainshaft Reverse Speed Gear
(6)Reverse Shift Detent Spring Sleeve
(7)Reverse Gear Bearing
(8)Mainshaft Gear Spacer
(9)Clutch Gear Retaining Ring
(10)Mainshaft Reverse Speed Gear
(11)Transmission Gear Bearing
(12)Mainshaft First Speed Gear
(13)Main Shaft
(14)Thrust Washer Retaining Pin
(15)Clutch Gear
(16)Mainshaft Bearing Retainer Ring
(17)Mainshaft Synchronizer Ring
(18)Mainshaft Synchronizer Ring
(19)Mainshaft Synchronizer Ring
(20)First and Second Gear Synchronizer Spring
(21)Synchronizer Spring
(22)Synchronizer Forward Clutch Key
(23)Synchronizer Block
(24)First and Second Gear Synchronizer Hub
(25)First and Second Gear Synchronizer Sleeve
(26)Mainshaft Second Speed Gear
(27)Transmission Gear Bearing
(28)Third Gear Thrust Washer
(29)Third Gear Retaining Ring
(30)Mainshaft Gear Bearing Spacer
(31)Mainshaft Third Speed Gear
(32)Third Speed Gear Bearing
(33)Synchronizer Clutch Gear
(34)Synchronizer Ring
(35)Synchronizer Sliding Clutch Hub
(36)Synchronizer Spring
(37)Synchronizer Key
(38)Mainshaft Gear Sleeve
(39)Synchronizer Ring
(40)Main Drive Clutch Dig Gear
(41)Main Drive Gear Bearing
(42)Main Drive Gear Pilot Bearing
(43)Main Drive Gear
(44)Drive Gear Bearing Cone
Figure 3:

Shift Cover


Object Number: 100515  Size: LF
(1)Cup Interlock Expansion plug
(2)Cover To Case Bolt
(3)Cover Pin
(4)Shift Lever Cover
(5)Vent Pipe
(6)Shift Fork Interlock Pin
(6)Shift Fork Interlock Pin
(6)Shift Fork Interlock Pin
(6)Shift Fork Interlock Pin
(6)Shift Fork Interlock Pin
(7)3RD and 4TH Shift Fork
(8)Shift Fork Pad
(8)Shift Fork Pad
(9)1ST and 2ND Shift Shaft
(10)Shift Interlock Plunger
(11)Shift Rod Interlock Pin
(12)3RD and 4TH Shift Shaft
(13)1ST and 2ND Shift Fork
(14)Shift Finger Plunger Spring
(15)1ST and 2ND Bias Shift Plunger
(16)Spring Type Pin
(17)1ST and 2ND Shift Lug
(18)3RD and 4TH Shift Lug
(19)Reverse and Overdrive Fork
(20)Spring Type Pin
(21)Overdrive Lug
(22)Shift Finger Plunger Spring
(23)3RD and 4TH Bias Shift Plunger
(24)Reverse Inhibiter Cam Bolt
(25)Reverse Inhibiter Cam Pin
(26)Reverse Inhibiter
(27)5TH and Reverse Shift Shaft
(28)Shift Fork and Bar Poppet Plunger
(29)Shift Rod Poppet Ball Spring
(30)Shift Bar Housing Expansion Plug
(31)Backup Lamp Switch Gasket
(32)Backup Lamp Switch
(33)Transmission Trunnion
Figure 4:

Rear Oil Retainer


Object Number: 102259  Size: LF
(1)Mainshaft Nut
(2)Mainshaft Nut Washer
(3)Vibration Damper
(4)Rear Oil Retainer
(5)Retainer Bolt
(6)Retainer Dowel Bushing Pin
(7)Speed Sensor Bolt
(8)Speed Sensor
(9)Shift Finger Plunger Spring
(10)Retainer Dowel Bushing Pin
(11)Retainer Bolt
(12)Rear Oil Retainer
(13)Rear Bearing Retainer Ring
(14)Rear Bearing Retainer Ring
(15)Extension Oil Seal
(16)Vibration Damper
(17)Propeller Shaft Yoke
(18)Mainshaft Nut Washer
(19)Mainshaft Nut
(20)Speed Sensor Bolt
(21)Speed Sensor
(22)Rear Oil Retainer
(23)Speedometer Spacer
(24)Rear Bearing Retainer Ring
(25)Rear Bearing Retainer Ring
(26)Extension Oil Seal
(27)Retainer Bolt
(28)Retainer Dowel Bushing Pin