Pinion and Ring Gear Inspection
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, 2003 Chevrolet TrailBlazer, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
- The ring and pinion gears are matched sets and must be replaced any time a replacement of either is necessary.
- Inspect the pinion and the ring gear teeth for the following conditions:
- Cracking
- Chipping
- Scoring
- Excessive wear
- Inspect the pinion gear splines for wear.
- Inspect the pinion flange splines for wear.
- Inspect the fit of the pinion flange on the pinion gear.
- Inspect the sealing surface of the pinion flange for nicks, burrs, or rough tool marks which will damage the inside diameter of the pinion seal and result in an oil leak.
- Inspect all of the parts for wear and replace as necessary.