GM Service Manual Online
For 1990-2009 cars only

Case Extension Fluid Leak

Checks

Cause

Case Extension (19)

Porosity or cracked

Case (7)

Porosity or cracked

Seal (15)

    â€¢ Cut or nicked
    â€¢ Missing

Bolt (21)

    â€¢ Low torque
    â€¢ Missing