GM Service Manual Online
For 1990-2009 cars only

Transfer Case Grinds, or Jumps Out of 4H or 4L for Chevrolet Tracker - 4WD 2003

Checks

Cause

Front Drive Clutch Sleeve

Excessive wear or damage

Reduction Clutch Sleeve

Excessive wear or damage

Drive Sprocket Clutching Teeth

Excessive wear or damage

Reduction Clutch Hub

Excessive wear or damage