Transfer Drive Gear: Inspection

1. Bearing

   Replace the bearings in the following cases.

   • Damage or rust on the bearings
   • Wear, or damage
   • The bearing does not rotate smoothly or an abnormal noise is emitted.
2. Drive gear

   Replace the drive gear in following case:

   • If the drive gear tooth surface and shaft are excessively damaged or broken.
3. Measure the clearance between the snap ring and ball bearing inner race with a thickness gauge.

   Standard clearance between the snap ring and inner race: 

   0 - 0.15 mm (0 - 0.0059 in) 

   Fig 1: Measuring Clearance Between Snap Ring And Ball Bearing Inner Race With Thickness Gauge

   Courtesy of SUBARU OF AMERICA, INC.
4. If the measurement is out of specifications, reselect an appropriate snap ring.

After replacing the snap ring, reinspect the clearance.