Pinion Flange Runout Check - Circular

Driveline System







Component Tests

Pinion Flange Runout Check - Circular

NOTICE: Pinion bearing preload must be reset if the pinion nut has been loosened or removed for pinion flange reindexing or replacement or damage to the component may occur.

1. Raise the vehicle on a twin-post hoist that supports the rear axle.

2. Remove the driveshaft.

3. Check the pinion flange for damage.

4. Position the Driveshaft Clamp Plate and Drive Pinion Flange Runout Gauge on the pinion flange.











5. Position the Driveshaft Clamp Plate and Drive Pinion Flange Runout Gauge onto the pinion flange.






6. Align the holes on the clamp plate with the holes in the pinion flange and install the bolts. Snug the bolts evenly.






7. Position the Dial Indicator Gauge with Holding Fixture as shown. Turn the Dial Indicator Gauge, and locate and mark the high spot on the pinion flange with yellow paint.





If the flange runout exceeds 0.25 mm (0.010 in), remove the pinion flange, reindex the flange one-half turn on the pinion, and reinstall it. Refer to the Pinion Flange, Differential removal and installation procedures.

8. Check the runout again. If necessary, rotate the flange until an acceptable runout is obtained. If the flange runout is still more than 0.25 mm (0.010 in), install a new pinion flange.






9. If excessive runout is still evident after replacement of the pinion flange, install a new ring and pinion. Repeat the above checks until the runout is within specifications.

10. Install the driveshaft.