F 350 2WD Pickup V8-460 7.5L VIN G EFI (1997)
Companion Flange: Testing and Inspection
DESCRIPTION
Rear axle universal joint flange runout should be checked when all other checks have failed to show the cause of vibration.
Improper installation of the rear axle drive pinion seal can cause excessive rear axle universal joint flange runout. If the spring on the seal lip is
dislodged, it will jam up and cock the flange. Check that possibility before replacing the differential ring gear and pinion because of excessive rear
axle universal joint flange runout.
PROCEDURE
1. Raise the vehicle on a hoist.
2. Remove the driveshaft.
3. Check the rear axle universal joint flange for damage to the universal joint bearing locating lugs. If the lugs are shaved (worn) or damaged, replace
the rear axle universal joint flange.
4. Insert correct size Gauge Pin, T92T-4851-E, T92T-4851-F or T92T-4851-G.
5. Position Companion Flange Runout Gauge T92T-4851-D on gauge pin.
6. Insert two bolts through gauge and rear axle universal joint flange. Install two nuts and hand-tighten.