GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Generic
🢒
1998
🢒
Unit Repair
🢒
Transmission/Transaxle
🢒 Automatic Transaxle - 3T40
Transmission/Transaxle
All Component Locator
Transmission Component Location
All Description and Operation
Drive Range, First Gear
Drive Range, Second Gear
Drive Range, Third Gear - Torque Converter Clutch Applied
Drive Range, Third Gear - Torque Converter Clutch Not Applied
Full Throttle Detent Downshift
Manual First Gear
Manual Second Gear
Neutral (Engine Running)
Park - Engine Running
Part Throttle, 3-2 Downshift
Reverse
All Special Tools and Equipment
Special Tools
Cleaning, Inspection, and Adjustment
Auxiliary Valve Body Inspection
Case Assembly Inspection
Case Cover Components Inspection
Control Valve Body and Oil Pump Inspection
Differential Carrier Inspection
Direct Clutch Inspection
Drive Link Stretch Check
Driven Sprocket Support Components Inspection
Final Drive End Play Check
Input Shaft to Case Cover End Play Check
Intermediate Servo Apply Pin Length Check
Low and Reverse Clutch Functional Air Check
Low Clutch Roller Race End Play Check
Low Roller Clutch and Reaction Carrier Inspection
Oil Pump Rotor Thickness Check
Reaction Carrier Pinion End Play Check
Reaction Sun Gear to Input Drum End Play Check
Thermo Element Adjustment
Torque Converter Inspection
Transmission Fluid Filter Inspection
Valve Body and Oil Pump Clean
Disassembly, Overhaul, Repair, and Assembly
1-2 Accumulator Assemble
Auxiliary Valve Body and Oil Pump Assemble
Auxiliary Valve Body and Oil Pump Disassemble
Auxiliary Valve Body Assemble
Auxiliary Valve Body Disassemble
Case Components Assemble
Case Components Disassemble
Case Cover and Gaskets Assemble
Case Cover and Gaskets Disassemble
Case Cover Components Disassemble
Case Seals Disassemble
Checkballs, Spacer Plate, and Gaskets Assemble
Control Valve Body Assemble
Control Valve Body Cover and Gasket Assemble
Control Valve Body Cover and Gasket Disassemble
Control Valve Body Disassemble
Control Valves and Oil Pump Disassemble
Cooler Fitting Connectors Assemble
Cooler Fitting Connectors Disassemble
Differential Carrier Assemble
Differential Carrier Complete Disassemble
Differential Carrier Components Assemble
Differential Carrier Components Disassemble
Differential Carrier Disassemble
Differential to Case Bushing Assemble
Differential to Case Bushing Disassemble
Direct and Forward Clutch Assemble
Direct and Forward Clutch Components Disassemble
Direct and Forward Clutch Housings Assemble
Direct Clutch Assembly Assemble
Direct Clutch Disassemble
Direct Clutch Housing Retainer/Ball Assemble
Direct Clutch Housing Retainer/Ball Disassemble
Drive and Driven Sprocket Components Assemble
Drive and Driven Sprocket Components Disassemble
Drive Link Stretch Check
Drive Shaft Oil Seal Assemble - Right Side
Drive Shaft Oil Seal Disassemble - Right Side
Drive Sprocket and Turbine Shaft Assemble
Drive Sprocket and Turbine Shaft Disassemble
Drive Sprocket Support Assemble
Drive Sprocket Support Disassemble
Driven Sprocket Bearing Assemble
Driven Sprocket Bearing Disassemble
Driven Sprocket Support Components Assemble
Driven Sprocket Support Components Disassemble
Driven Sprocket Support Disassemble
Electrical Connector and Manual Valve Assemble
Final Drive End Play Check
Forward Clutch Assembly Assemble
Forward Clutch Assembly Disassemble
Governor Assembly Disassemble
Governor Drive Gear Assemble
Governor Drive Gear Disassemble
Input Drum Assemble
Input Gear, Carrier, Sun Gear and Drum Disassemble
Input Internal Gear, Carrier, Sun Gear Assemble
Input Shaft to Case Cover End Play Check
Intermediate Band Assemble
Intermediate Band Disassemble
Intermediate Band Servo Disassemble
Intermediate Servo Assemble
Left Axle Seal Assembly
Low and Reverse Clutch Assemble
Low and Reverse Clutch Housing Disassemble
Low and Reverse Clutch Piston Assemble
Low and Reverse Clutch Piston Disassemble
Low Clutch Roller Race End Play Check
Low Roller Clutch and Reaction Carrier Assemble
Low Roller Clutch and Reaction Carrier Disassemble
Low Roller Clutch and Reaction Gearset Disassemble
Low, Reverse Clutch Piston to Case Seal Assemble
Low/Reverse Pipe, Weir and Retainers Assemble
Low/Reverse Pipe, Weir and Retainers Disassemble
Manual Detent Spring and Roller Assemble
Manual Detent Spring and Roller Disassemble
Manual Shaft and Filter Seals Assemble
Oil Pan and Filter Disassemble
Oil Pump Drive Shaft Assemble
Oil Pump Shaft Bearing Assemble
Oil Pump Shaft Bearing Disassemble
Output Shaft Assemble
Output Shaft Disassemble
Park Lock Pawl Assemble
Park Lock Pawl Disassemble
Park System Components Assemble
Park System Components Disassemble
Reaction Sun Gear Assemble
Reaction Sun Gear Disassemble
Reaction Sun Gear to Input Drum End Play Check
Spacer Plate and Oil Pump Drive Shaft Disassemble
Third Oil and Case Cup Plugs Assemble
Third Oil and Case Cup Plugs Disassemble
Throttle Valve Lever and Bracket Assembly
Throttle Valve Lever and Bracket Disassemble
Torque Converter Assemble
Torque Converter Clutch Solenoid and Wiring Harness Assemble
Torque Converter Clutch Solenoid and Wiring Harness Disassemble
Torque Converter Disassemble
Torque Converter Fluid Seal Assemble
Torque Converter Fluid Seal Removal
Transmission Fluid Pan and Filter Assemble
Transmission Holding Fixture Disassemble
Transmission Overhaul
Transmission Support Fixture Assemble
Valve Body and Oil Pump Assemble
Vehicle Speed Sensor and Governor Assemble
Vehicle Speed Sensor and Governor Disassemble
Vent and Line Pressure Plug Assemble
Vent and Line Pressure Plug Disassemble
Mechanical Specifications
End Play Specifications
Fastener Tightening Specifications
Fluid Capacity Specifications
Oil Pump Specifications
Transmission General Specifications