Pinion Flange Runout Check - Circular
WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. 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 installation.
- With the vehicle in NEUTRAL, position it on a twin-post hoist that supports the axles. Refer to JACKING AND LIFTING article.
- Remove the driveshaft.
- Check the pinion flange for damage.
- Position the Companion Flange Runout Gauge on the pinion flange.
Item Part Number Description 1 - Pilot (part of 4851) 2 354845 Pinion nut 3 205-319 (T92L-4851-B) Gauge, Companion Flange Runout 4 - Bolts (2 required) (part of 205-320 [T92L-4851-C]) 5 205-320 (T92L-4851-C) Plate, Companion Flange 6 4851 Pinion flange - Assemble the special tools.
- Align the holes on the clamp plate with the holes in the pinion flange and install the bolts. Snug the bolts evenly.
- Position the special tools as shown. Turn the Companion Flange Runout Gauge, and locate and mark the high spot on the pinion flange with yellow paint.
- 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.
- For the rear axle, if excessive runout is still evident after installation of the pinion flange, install a new ring and pinion. Repeat the above checks until the runout is within specification.
- Install the driveshaft.
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.