F 350 4WD Pickup V8-7.3L DSL (1988)
Seals and Gaskets: By Symptom
Technical Service Bulletin # 88912042788
Date: 880401
Full Float Hub Seal - Lubricant Leak
Article No. 88-9-12
AXLE - REAR - FORD 10.25" FULL FLOAT DESIGN - HUB SEAL LEAKS
LEAKS - LUBRICANT FROM HUB SEAL -
FORD 10.25" FULL FLOAT DESIGN REAR AXLE
LIGHT TRUCK:
1985-88 F-250/350
ISSUE:
Lubricant leaking from the rear axle on F-250 and F-350 trucks, with Ford 10.25" full float axles may be caused by the hub seal. The
leaking condition could affect trucks with single or dual rear wheels.
ACTION:
To correct this, install a new design hub seal with improved sealing qualities. The new hub seal is "green" in color to assist in part
identification. Refer to the appropriate Light Truck Shop Manual, Volume A, Section 15-09 and the following service procedure for
removal and installation instructions.
FIGURE 12
1.
Position hub seal with the "Ford" logo facing up, Figure 12.