4L80-E/4L85-E Automatic Transmission

Possible Fluid Leak Points

Case and Associated Parts (1 of 3)

Case and Associated Parts (2 of 3)


Case and Associated Parts (3 of 3)


Oil Pump Assembly

Control Valve Body Assembly (1 of 2)

Control Valve Body Assembly (2 of 2)

Accumulator Assembly

Overrun Clutch Assembly

Fourth Clutch Assembly

Forward Clutch Assembly

Direct Clutch and Intermediate Sprag Assembly

Intermediate Clutch Plates and Manual 2-1 Band Assembly


Center Support and Gear Unit Assembly

Parking Lock and Actuator Assembly

Output Shaft Identification

Bushing and Bearing Locations

Seal Locations

Pump Body Fluid Passages (Pump Cover Side)

Pump Cover Fluid Passages (Pump Body Side)

Pump Cover Fluid Passages (Case Side)

Case Fluid Passages (Pump Cover Side)

Case Fluid Passages (Control Valve Body Side)

Spacer Plate to Case Gasket with Accumulator Housing Gasket


Spacer Plate


Spacer Plate to Control Valve Body Gasket


Control Valve Body Fluid Passages (Case Side)