F 250 4WD Pickup V6-4.2L VIN 2 (1998)
6. Align the holes on the clamp plate with the holes in the companion flange and install the bolts. Snug the bolts evenly.
7. Position the Dial Indicator/Magnetic Base as shown. Turn the Companion Flange Runout Gauge, and locate and mark the high spot on the
companion flange with yellow paint.
8. If the flange runout exceeds 0.25 mm (0.010 inch), remove the companion flange, reindex the flange one-half turn on the pinion, and reinstall it.
9. 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), replace the companion flange.
10
If excessive runout is still evident after replacement of the companion flange, replace the ring and pinion. Repeat the above checks until the runout
is within specifications.
10. Install the driveshaft.
