Pinion Flange Runout Check - Circular
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Pinion bearing preload must be reset if the pinion nut has been loosened or removed for pinion flange reindexing or replacement.
- Raise the vehicle on a twin-post hoist that supports the rear axle. For additional information, refer to JACKING & LIFTING .
- Remove the driveshaft. For additional information, refer to DRIVESHAFT .
- Check the pinion flange for damage.
- Position the Drive Pinion Flange Runout Gauge on the pinion flange.
- Position the Driveshaft Clamp Plate onto the Drive Pinion Flange Runout Gauge.
- Align the holes on the Companion Flange Plate with the holes in the pinion flange and install the bolts. Snug the bolts evenly.
- Position the Dial Indicator Gauge Holding Fixture as shown. Turn the Drive Pinion Flange Runout 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 inch), remove the pinion flange, reindex the flange one-half turn on the pinion, and reinstall it. For additional information, refer to REAR DRIVE AXLE/DIFFERENTIAL - FORD 7.5" RING GEAR , REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8" RING GEAR or FRONT DRIVE AXLE/DIFFERENTIAL - DANA 35 for the flange removal and installation procedures.
- 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 inch), install a new pinion flange.
- 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.
- Install the driveshaft. For additional information, refer to DRIVESHAFT .