F 250 2WD HD Pickup V8-7.3L DSL Turbo VIN F (1997)
7. Position Dial Indicator/Magnetic Base D78P-4201-B or equivalent as shown. Adjust and lightly tighten mounting bolts and nuts so gauge runout is
0.254 mm (0.010 inch) or less.
NOTE: Accurate tool setup will result in accurate final readings.
8. Reposition dial indicator on edge of gauge, and turn rear axle companion flange/gauge as shown until high spot is located.
9. Turn companion flange runout gauge as shown to locate and mark high spot on rear axle universal joint flange. If flange runout exceeds 0.254 mm
(0.010 inch), remove rear axle universal joint flange, reindex 180 degrees on pinion and reinstall. Check runout again. Rotate the rear axle
universal joint flange until an acceptable runout is obtained. If flange runout is still greater than 0.254 mm (0.010 inch), replace rear axle universal
joint flange.
CAUTION: The following operation may disturb the pinion bearing preload. Pinion bearing preload must be reset if the pinion nut is loosened or
removed for companion flange reindexing or replacement of rear axle companion flange.
10. If excessive runout is still evident after replacement of the rear axle universal joint flange, it will be necessary to replace the differential ring gear
and pinion, and repeat Step 9 until runout is within specification (0.254 mm [O.010 in.]).
11. Install driveshaft.
