Pinion Flange Runout Check - Circular
WARNING: This page is about a different car, the 2007 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. Refer to JACKING AND LIFTING article.
- Remove the driveshaft. Refer to DRIVESHAFT article.
- Check the pinion flange for damage.
- Position the Drive Pinion Flange Runout Gauge on the pinion flange.
Item Part Number Description 1 - Pilot (part of 205-319 [T92L-4851-B]) 2 354845 Pinion nut 3 205-319 (T92L-4851-B) Runout Gauge, Drive Pinion Flange 4 - Bolts (2 required)
(part of 205-320 [T92L-4851-C])5 205-320 (T92L-4851-C) Clamp Plate, Driveshaft 6 4851 Pinion flange - Position the clamp plate onto the runout gauge.
- Align the holes on the special tool with the holes in the pinion flange and install the bolts. Snug the bolts evenly.
- Position the special tool as shown. Turn the 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.
- 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. Refer to DRIVESHAFT article.
If the flange runout exceeds 0.25 mm (0.010 in), remove the pinion flange, reindex the flange 1/2 turn on the pinion, and reinstall it. Refer to REAR DRIVE AXLE/DIFFERENTIAL - FORD 7.5-INCH RING GEAR article, REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8-INCH RING GEAR article, REAR DRIVE AXLE/DIFFERENTIAL - FORD 8.8-INCH RING GEAR HIGH TORQUE article or FRONT DRIVE AXLE/DIFFERENTIAL - DANA 35 article for the flange removal and installation procedures.