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

Major Components


Object Number: 1206585  Size: LF
(1)Reverse Idler Gear
(2)Reverse Idler Gear Shaft
(3)4th Clutch Assembly
(4)5th Clutch Assembly
(5)Mainshaft 5th Gear
(6)Mainshaft Reverse Gear
(7)Mainshaft Assembly
(8)Output Shaft Reverse Gear
(9)Reverse Selector Hub
(10)Output Shaft Assembly
(11)Reverse Shift Fork
(12)Output Shaft 5th Gear
(13)Output Shaft 4th Gear
(14)Output Shaft Idler Gear
(15)Output Shaft 1st Gear
(16)Output Shaft 2nd Gear
(17)Coast Clutch Assembly
(18)1st Clutch Assembly
(19)1st - 2nd Clutch Shaft 1st Gear
(20)1st - 2nd Clutch Shaft Drive Gear
(21)Transfer Drive Gear
(22)Final Driven Gear
(23)Transfer Output Shaft
(28)Front Differential Assembly
(29)1st - 2nd Clutch Shaft 2nd Gear
(30)Park Gear
(31)2nd Clutch Assembly
(32)1st - 2nd Clutch Shaft Assembly
(33)Final Drive Gear
(34)Mainshaft 3rd Gear
(35)Mainshaft 4th Gear
(36)Torque Converter Assembly
(37)3rd Clutch Shaft
(38)3rd Clutch Assembly
(39)3rd Clutch Shaft 3rd Gear
(40)3rd Clutch Shaft 4th Gear
Figure 2:

Seal Locations


Object Number: 1343175  Size: LF
(68)Torque Converter Housing Gasket
(71)Coast Clutch Apply Fluid Pipe Guide Plate Inner O-ring Seal - 11 x 1.9 mm
(72)Coast Clutch Apply Fluid Pipe Guide Plate Outer O-ring Seal - 34 x 1.9 mm
(77)1st Coast Clutch Apply Fluid Collar O-ring Seal - 43.5 x 2.2 mm
(93)Front Wheel Drive Shaft Fluid Seal - 40 x 56 x 9 mm
(99)Mainshaft Rear Cover O-ring Seal - 104 x 2.2 mm
(116)Torque Converter Seal - 46 x 70 x 8 mm
(117)Front Wheel Drive Shaft Oil Seal - 35 x 54 x 8 mm
(118)Transfer Case Input Shaft Seal - 48 x 65 x 7.5 mm
(128)1st/2nd Lube Feed Collar O-ring Seal - 36.5 x 2.0 mm
(406)Stator Shaft O-ring Seal - 32.5 x 1.8 mm
(602)Mainshaft Fluid Passage Seal - 31 mm, Square Cut
(604)4th/5th/Reverse Clutch Housing Fluid Passage O-ring Seal - 33 x 1.9 mm
(617)4th Clutch Piston Outer O-ring Seal - 119.1 x 2.3 mm
(618)4th Clutch Piston Inner O-ring Seal - 44.1 x 2.2 mm
(633)5th/Reverse Clutch Piston Outer O-ring Seal - 119.1 x 2.3 mm
(634)5th/Reverse Clutch Piston Inner O-ring Seal - 44.1 x 2.2 mm
(713)Coast Clutch Piston Outer O-ring Seal - 110 x 2.2 mm
(714)Coast Clutch Piston Inner O-ring Seal - 52.1 x 2.2 mm
(716)1st Clutch Piston Outer O-ring Seal - 119 x 2.3 mm
(717a)1st Clutch Piston Front Inner O-ring Seal - 44.1 x 2.2 mm
(717b)1st Clutch Piston Rear Inner O-ring Seal - 45.1 x 2.2 mm
(735)1st/Coast Clutch Housing Fluid Passage O-ring Seal - 26.7 x 1.9 mm
(737)2nd Clutch Housing Fluid Passage O-ring Seal - 31.2 x 1.9 mm
(738)1st/2nd Clutch Shaft Fluid Passage O-ring Seal - 29 mm, Square Cut
(747)2nd Clutch Piston Outer O-ring Seal - 114 x 2.2 mm
(748)2nd Clutch Piston Inner O-ring Seal - 42.8 x 2.2 mm
(819)3rd Clutch Piston Outer O-ring Seal - 116.7 x 2.2 mm
(820)3rd Clutch Piston Inner O-ring Seal - 41.8 x 2.2 mm
(822)3rd Clutch Housing Fluid Passage O-ring Seal - 26.7 x 1.9 mm
(824)3rd Clutch Shaft Fluid Passage O-ring Seal - 35 mm, Square Cut
Figure 3:

Bearing Locations - 1st Design


Object Number: 1343170  Size: LF
(65)3rd Clutch Shaft Rear Bearing - 20 x 41 x 17/16 mm
(100)Mainshaft Rear Bearing - 29 x 82 x 17 x 15.5 mm
(115)Torque Converter Bearing - 42 x 68 x 7.5 mm
(127)1st/2nd Clutch Shaft Front Bearing - 29 x 39 x 9.5 mm
(130)1st/2nd Clutch Shaft Intermediate Bearing - 32 x 63 x 19 mm
(136)Output Shaft Front Bearing - 40.5 x 74 x 21 mm
(138)3rd Clutch Shaft Front Bearing - 28 x 52 x 12.8 mm
(506)5th Driven Gear Inner Bearing - 35 x 21 x 46 mm
(511)Reverse Driven Gear Inner Bearing - 40 x 46 x 14.5 mm
(514)Output Shaft Rear Bearing - 31 x 93 x 19 mm
(519)1st/2nd Idler Gear Thrust Bearing - 56 x 87.5 x 5.5 mm
(521)1st/2nd Idler Gear Inner Bearing - 47 x 65 x 28.7 mm
(522)2nd Driven Gear Thrust Bearing - 65 x 83 x 4.5 mm
(528)Reverse Idler Gear Inner Bearing - 14 x 18 x 15 mm
(601)Mainshaft Front Bearing - 23 x 31 x 21.8 mm
(606)4th Drive Gear and Clutch Hub Bearing - 38 x 78 x 37/27 mm
(619)5th/Reverse Drive Gear and Hub Thrust Bearing - 40 x 53 x 2.5 mm
(621)5th/Reverse Drive Gear and Clutch Hub Inner Bearing - 40 x 46 x 34 mm
(622)5th/Reverse Drive Gear and Hub Thrust Bearing - 40 x 59 x 3 mm
(719)1st/2nd Clutch Shaft Rear Bearing - 29 x 65 x 9 mm
(723)1st/Coast Clutch Hub Thrust Bearing - 40 x 57 x 2.5 mm
(727)1st Drive Gear Thrust Bearing - 43.5 x 61.5 x 2.5 mm
(728)1st Drive Gear Inner Bearing
(731)2nd Drive Gear Thrust Bearing - 44 x 66 x 3.5 mm
(733)2nd Drive Gear Inner Bearing - 44 x 50 x 42 mm
(750)2nd Clutch Housing Thrust Bearing - 46 x 62.95 x 4.62 mm
(801)3rd Drive Gear and Clutch Hub Thrust Bearing - 30 x 52 x 3 mm
(802)3rd Drive Gear and Clutch Hub Inner Bearing - 30 x 36 x 32 mm
(902)Front Differential Front Bearing - 40 x 80 x 21.25 mm
(907)Front Differential Rear Bearing - 45 x 85 x 19.7 mm
(911)Transfer Case Input Gear Front Bearing - 22 x 76 x 19 mm, AWD Only
(914)Transfer Case Input Gear Rear Bearing - 40 x 80 x 16.5 mm, AWD Only
Figure 4:

Bearing Locations - 2nd Design


Object Number: 1679624  Size: LF
(65)3rd Clutch Shaft Rear Bearing - 20 x 41 x 17/16 mm
(100)Mainshaft Rear Bearing - 29 x 82 x 17 x 15.5 mm
(115)Torque Converter Bearing - 42 x 68 x 7.5 mm
(127)1st/2nd Clutch Shaft Front Bearing - 29 x 39 x 9.5 mm
(130)1st/2nd Clutch Shaft Intermediate Bearing - 32 x 63 x 19 mm
(136)Output Shaft Front Bearing - 40.5 x 74 x 21 mm
(138)3rd Clutch Shaft Front Bearing - 28 x 52 x 12.8 mm
(506)5th Driven Gear Inner Bearing - 35 x 21 x 46 mm
(511)Reverse Driven Gear Inner Bearing - 40 x 46 x 14.5 mm
(514)Output Shaft Rear Bearing - 31 x 93 x 19 mm
(519)1st/2nd Idler Gear Thrust Bearing - 56 x 87.5 x 5.5 mm
(521)1st/2nd Idler Gear Inner Bearing - 47 x 65 x 28.7 mm
(522)2nd Driven Gear Thrust Bearing - 65 x 83 x 4.5 mm
(528)Reverse Idler Gear Inner Bearing - 14 x 18 x 15 mm
(601)Mainshaft Front Bearing - 23 x 31 x 21.8 mm
(606)4th Drive Gear and Clutch Hub Bearing - 38 x 78 x 37/27 mm
(619)5th/Reverse Drive Gear and Hub Thrust Bearing - 40 x 53 x 2.5 mm
(621)5th/Reverse Drive Gear and Clutch Hub Inner Bearing - 40 x 46 x 34 mm
(622)5th/Reverse Drive Gear and Hub Thrust Bearing - 40 x 59 x 3 mm
(719)1st/2nd Clutch Shaft Rear Bearing - 29 x 65 x 9 mm
(723)1st/Coast Clutch Hub Thrust Bearing - 40 x 57 x 2.5 mm
(727)1st Drive Gear Thrust Bearing - 43.5 x 61.5 x 2.5 mm
(728)1st Drive Gear Inner Bearing
(731)2nd Drive Gear Thrust Bearing - 44 x 66 x 3.5 mm
(733)2nd Drive Gear Inner Bearing - 44 x 50 x 42 mm
(750)2nd Clutch Housing Thrust Bearing - 46 x 62.95 x 4.62 mm
(801)3rd Drive Gear and Clutch Hub Thrust Bearing - 30 x 52 x 3 mm
(802)3rd Drive Gear and Clutch Hub Inner Bearing - 30 x 36 x 32 mm
(902)Front Differential Front Bearing - 40 x 80 x 21.25 mm
(907)Front Differential Rear Bearing - 45 x 85 x 19.7 mm
(911)Transfer Case Input Gear Front Bearing - 22 x 76 x 19 mm, AWD Only
(914)Transfer Case Input Gear Rear Bearing - 40 x 80 x 16.5 mm, AWD Only
Figure 5:

Pressure Tap Locations - Torque Converter Housing


Object Number: 1343172  Size: MF
(1)2nd Clutch
(2)1st Clutch Accumulator
(3)5th Clutch
(4)Line Pressure
(5)3rd Clutch
Figure 6:

Pressure Tap Location - Transmission Case


Object Number: 1343176  Size: MF
(1)4th Clutch
(2)1st Clutch
(3)Coast Clutch