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

Case Components


Object Number: 1921416  Size: LF
(3)Clutch Actuator Bolt/Screw - M6 x 1.0
(4)Clutch Actuator Bolt/Screw - M8 x 1.0
(7)Transmission Intermediate Case
(8)Shift Shaft Bearing Assembly
(9)Transmission Rear Case Locating Pin
(9a)Transmission Rear Case Locating Pin
(11)Transmission Front Case
(12)Input Shaft Seal
(13)Input Shaft Bearing Oil Shield
(14)Select Control Lever Bracket Pin
(14a)Transmission Case Intermediate Locating Pin
(15)Transmission Case Locating Pin
(16)Transmission Case Hole Plug
(17)Transmission Rear Case Oil Trough
(18)Input Shaft Bearing Oil Slinger - Front
(19)Oil Trough
(20)Transmission Intermediate Case Oil Trough
(21)Counter Gear Bearing Retainer
(23)Transmission Rear Case
(24)Shift Shaft Bushing
(25)Shift Shaft Bearing Assembly
(26)Transmission Extension Locating Pin
(26a)Transmission Extension Locating Pin
(27)Transmission Intermediate Case Bolt/Screw - M10 x 1.25
(27a)Backup Switch Bracket Bolt/Screw
(28)Transmission Intermediate Case Bolt/Screw - M10 x 1.25
(29)Transmission Rear Case Oil Trough Gasket
(30)Clutch Housing Hole Plug
(31)Vent Assembly
(32)Reverse Idler Gear Shaft Bolt Gasket
(33)Oil Drain Plug Gasket
(33a)Oil Fill Plug Gasket
(34)Oil Drain Plug
(35)Reverse Idler Gear Shaft Retainer Bolt/Screw
(36)Shift Shaft Detent Plug
(37)Transmission Intermediate Case Oil Trough Bolt/Screw
(38)Counter Gear Bearing Retainer Bolt/Screw
(68)Shift Shaft Detent Pin
(75)Shift Shaft Detent Spring
(79)Oil Fill Plug
(86)Transmission Extension
(87)Main Shaft Bearing Rear Oil Slinger
(88)Shift Control Shaft Seal
(92)Rear Output Shaft Seal Assembly
(93)Transmission Extension Bolt/Screw
(108)Propshaft Transmission Flange Assembly
(126)Propshaft Transmission Flange Nut
(136)Reverse Idler Gear Bearing Assembly
(193)Propshaft Transmission Flange Fluid Seal
(204)Reverse Idler Gear Shaft
(205)Reverse Idler Gear
(208)Backup Lamp Switch Assembly
(209)Backup Lamp Switch Retainer
(213)Output Sensor Assembly
(215)Vehicle Speed Sensor Bolt/Screw
Figure 2:

Countershaft Components


Object Number: 1921417  Size: MF
(95)1st Gear Blocking Ring Set
(95a)2nd Gear Blocking Ring Set
(96)1st Gear Synchronizer Inner Cone
(96a)2nd Gear Synchronizer Inner Cone
(97)1st Gear Synchronizer Outer Cone
(97a)2nd Gear Synchronizer Outer Cone
(98)1st Gear Outer Blocking Ring
(98a)2nd Gear Outer Blocking Ring
(112)Reverse Drive Gear
(114)Reverse Gear Bearing Bushing w/Thrust Washer
(115)1st/2nd Gear Synchronizer Hub
(117)1st/2nd Gear Synchronizer Sleeve
(119)1st/2nd Gear Synchronizer Insert
(120)Reverse Gear Synchronizer Insert
(122)Reverse Gear Blocking Ring
(123)1st/2nd Gear Synchronizer Spring
(125) Reverse Gear Synchronizer Sleeve
(127)1st/2nd Gear Synchronizer Detent Ball
(128)Counter Gear Front Bearing Assembly
(133)Reverse Gear Bearing Assembly
(134)1st Gear Bearing Assembly
(135)2nd Gear Bearing Assembly
(138)Counter Gear Rear Bearing Assembly
(142)Counter Gear Front Bearing Retainer Ring
(142a)Counter Gear Rear Bearing Retainer Ring
(153)1st/2nd Gear Synchronizer Retaining Ring
(187)Counter Gear Front Bearing Retainer
(194)Reverse Gear Thrust Washer Locking Ball
(195)Reverse Gear Synchronizer Spring
(199)1st Gear
(200)2nd Gear
(203)Counter Gear
(206)Reverse Gear
Figure 3:

Input Shaft Components


Object Number: 1921420  Size: LF
(89)Rear Output Shaft Roller Bearing Assembly
(104)3rd Gear Blocking Ring
(107)Main Shaft Bearing Oil Slinger
(111)Rear Output Shaft
(113)3rd Gear Thrust Washer
(116)3rd/4th Gear Synchronizer Hub
(118)3rd/4th Gear Synchronizer Sleeve
(118a)5th/6th Gear Synchronizer Sleeve
(119)3rd/4th Gear Synchronizer Insert
(119a)5th/6th Gear Synchronizer Insert
(121)4th Gear Blocking Ring
(121a)6th Gear Blocking Ring
(121b)5th Gear Blocking Ring
(123)3rd/4th Gear Synchronizer Spring
(123a)5th/6th Gear Synchronizer Spring
(124)5th/6th Gear Synchronizer Hub
(127)3rd/4th Gear Synchronizer Detent Ball
(127a)5th/6th Gear Synchronizer Detent Ball
(129)Input Shaft Bearing Assembly
(130)4th Gear Bearing Assembly
(131)6th Gear Bearing Assembly
(132)3rd Gear Bearing Assembly
(137)Input Shaft Bearing
(139)Rear Output Shaft Front Bearing Assembly
(156)3rd Gear Retaining Ring
(163)5th/6th Gear Synchronizer Hub Retaining Ring
(170)6th Gear Retaining Ring
(176)Input Shaft Bearing Retainer
(188)Input Shaft Bearing Retainer Ring
(189)6th Gear Bearing Spacer
(190)3rd/4th Gear Spacer
(191)Rear Output Shaft Rear Bearing Spacer
(192)Gear Thrust Washer Locating Pin
(197)3rd Gear
(198)4th Gear
(201)6th Gear
(202)Input Shaft
(212)Vehicle Speed Sensor Drive Gear
(214)Speedometer Drive Gear Locking Ball
Figure 4:

Shift Rail Components


Object Number: 2006646  Size: LF
(40)Shift Lever Rod Universal Joint Assembly
(41)Shift Lever Pin
(44)Shift Control Lever Bracket
(45)Shift Shaft Detent Cam
(46)1st/2nd Shift Fork Assembly w/Bushings
(49)3rd/4th Shift Fork Assembly w/Inserts
(50)Control Selector Arm
(51)Control Selector Arm Pin
(52)5th/6th Shift Fork Assembly w/Inserts
(55)Shift Lever Assembly
(56)Internal Shift Control Lever
(57)Selector Control Lever Assembly
(58)1st/2nd Shift Shaft
(59)3rd/4th Shift Shaft
(60)5th/6th Shift Shaft
(61)Reverse Shift Shaft
(62)Shift Shaft Detent Lever
(63)Reverse Shift Fork Assembly w/Inserts
(66)Shift Control Shaft
(67)Shift Shaft Detent
(69)3rd/4th Shift Fork Bolt/Screw
(69)5th/6th Shift Fork Bolt/Screw
(70)1st/2nd Shift Fork Pin
(71)Reverse Shift Fork Pin
(72)Shift Shaft Detent Roller
(73)Shaft Detent Ball Spring
(74)Shift Shaft Detent Spring
(76)Shift Shaft Detent Lever Bolt/Screw
(77)Shift Shaft Interlocking Pin
(78)Shift Shaft Interlocking Pin
(80)Shift Detent Ball
(81)Shift Control Lever Bracket Bolt/Screw
(82)Selector Control Lever Pin Retainer
(100)Slotted Spring Pin
(101)Dynamic Damper Weight
(102)Damper