GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 Cobalt 🢒 Transmission/Transaxle 🢒 Manual Transaxle - MU3 🢒 Manual Transmission Component Views
Figure 1:

Transaxle Case and Clutch Housing
Object Number: 1339429 Size: LF
(1)Drive Shaft Oil Seal
(2)Clutch Housing
(3)Clutch Housing Cover
(4)Output Shaft Bearing Retainer Bolt
(5)Output Shaft Bearing Retainer
(6)Output Shaft Bearing Retainer Bolt
(7)Transaxle Vent Filter
(8)Transaxle Case
(9)Transaxle Case to Clutch Housing Bolt
(10)Input Shaft Bearing Retainer Shim
(11)Input Shaft Bearing Retainer
(12)Input Shaft Bearing Retainer Bolt
(13)Transaxle Oil Level Plug
(14)Transaxle Magnet
(15)Transaxle Lube Fill Plug
(16)Transaxle Oil Drain Plug
(17)Differential Bearing Shims
(18)Differential Bearing Retainer O-ring Seal
(19)Differential Bearing Retainer
(20)Differential Bearing Retainer Bolt
(21)Drive Shaft Oil Seal
(22)Tranxaxle Cover Gasket
(23)Transaxle Cover
(24)Transaxle Cover Bolt
(200)Shift Lever
(201)Shift Lever Roll Pin
(202)Shift Lever
(203)Shift Lever Roll Pin
(300)Reverse Idler Shaft Bolt
(301)Reverse Idler Shaft O-ring Seal
(302)Slave Cylinder Bolt
(303)Slave Cylinder
(330)Slave Cylinder Pipe
(331)Back Up Lamp Switch Assembly
Figure 2:

Internal Shift Mechanism
Object Number: 1339431 Size: LF
(8)Transaxle Case
(210)1st and 2nd Shift Shaft
(211)1st and 2nd Shift Fork
(212)Roll Pin
(230)3rd and 4th Shift Shaft
(231)Roll Pin
(232)Roll Pin
(233)3rd and 4th Shift Block
(234)Roll Pin
(235)3rd and 4th Shift Fork
(250)5th Shift Shaft
(251)5th Shift Block
(252)5th Shift Fork
(270)Reverse Shift Shaft
(271)Reverse Shift Fork Assembly
(272)Reverse Interlock Shaft
(273)Reverse Interlock Shaft Detent Pin
(274)Reverse Shift Lever
(275)Reverse Shift Lever Bolt
(276)Reverse Shift Lever Assembly
(277)Reverse Shift Lever Bracket
(280)Washer
(281)Shift Rail
(282)Detent Ball
(283)Spacer
(284)Detent Spring
(285)Shift Cylinder
(286)Double Position Blocker
(287)Torsion Spring
(288)Snap Ring
(289)Washer
(290)O-ring Seal
(291)Shift Rail
(292)Washer
(293)O-ring Seal
(294)Shift Rail
(295)Shift Control Lever Bracket Assembly
(296)Shift Control Lever Bracket Bushing
(296)Shift Control Lever Bracket Bushing
(297)Shift Control Lever Bracket Bolt
Figure 3:

Input and Output Shaft Components
Object Number: 1339436 Size: LF
(130)Third Drive Gear Bearing
(131)Third Drive Gear
(132)Third Gear Blocking Ring
(133)Third and Fourth Gear Synchronizer Hub
(134)Third and Fourth Gear Synchronizer Insert
(135)Third and Fourth Gear Synchronizer Insert Pin
(136)Third and Fourth Gear Synchronizer Insert Spring
(137)Third and Fourth Gear Synchronizer Hub Washer
(138)Third and Fourth Gear Synchronizer Retaining Ring
(139)Third and Fourth Gear Synchronizer Sleeve
(140)Fourth Gear Bearing
(141)Fourth Gear Blocking
(142)Fourth Drive Gear
(143)Input Shaft Bearing
(144)Input Shaft Retaining Ring
(160)Fifth Drive Gear Bearing
(161)Fifth Drive Gear
(162)Fifth Gear Blocking Ring
(163)Fifth Gear Synchronizer Spring
(164)Fifth Gear Synchronizer Hub
(165)Fifth Gear Synchronizer Sleeve
(166)Fifth Gear Synchronizer Hub Retaining Ring
(190)Input Shaft Bearing
(191)Input Shaft
(321)Reverse Idler Gear Shaft
(322)Reverse Idler Gear Thrust Bearing
(323)Reverse Idler Gear
(324)Reverse Gear Blocking Ring
(325)Reverse Gear Synchronizer Spring
(326)Reverse Synchronizer Sleeve
(327)Reverse Gear
(328)Reverse Gear Thrust Washer
(329)Reverse Idler Gear Shaft Bracket
(400)Output Shaft
(401)Output Shaft Front Bearing
(410)First Driven Gear
(411)First Gear Synchronizer Inner Cone
(412)First Gear Synchronizer Outer Cone
(413)First Gear Blocking Ring
(414)First Gear Synchronizer Spring
(415)First and Second Gear Synchronizer Hub
(416)First and Second Gear Synchronizer Insert
(417)Second Gear Synchronizer Spring
(418)First and Second Gear Synchronizer Sleeve
(420)Second Gear Blocking Ring
(421)Second Gear Synchronizer Outer Cone
(422)Second Gear Synchronizer Inner Cone
(423)Second Gear Bushing
(424)Second Driven Gear
(430)Third Driven Gear
(431)Third and Fourth Gear Spacer
(432)Output Shaft Crush Sleeve
(440)Fourth Driven Gear
(441)Output Shaft Bearing
(442)Output Shaft Bearing Race
(450)Fifth Driven Gear
(451)Fifth Gear Nut
Figure 4:

Differential Assembly Components
Object Number: 1339439 Size: MF
(304)Differential Bearing Race
(305)Differential Bearing
(306)Differential Ring Gear Bolt
(307)Differential Ring Gear
(308)Differential Side Gear Thrust Washer
(309)Differential Side Gear
(310)Differential Pinion Gear
(311)Differential Pinion Gear Thrust Washer
(312)Differential Pinion Gear Shaft
(313)Differential Side Gear
(314)Differential Side Gear Thrust Washer
(315)Differential Pinion Gear
(316)Differential Pinion Gear Thrust Washer
(317)Differential Pinion Gear Shaft Locking Pin
(318)Differential Bearing
(319)Differential Bearing Race
(320)Differential Case