F 250 2WD Pickup V8-351 5.8L VIN H 4-bbl HP (1985)
Wheel Seal: Customer Interest
Rear Axle Hub Seal - Lubricant Leaks
Article No. 91-6-7
03/18/91
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AXLE - NEW HUB SEAL AND HUB SEAL REPLACER TOOL - VEHICLES WITH 10.25 INCH RING GEAR, FULL - FLOATING REAR
AXLES
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LEAKS - AXLE LUBE - 10.25 INCH RING GEAR, FULL - FLOATING REAR AXLES
LIGHT TRUCK:
1985-91 F-250, F-350
ISSUE:
A new hub seal and a hub seal replacer tool are now available for service. The new hub seal is designed to improve sealing when properly
installed using the new hub seal replacer tool.
ACTION:
Install a new hub seal (FOTZ-1177-A) with the new hub seal replacer tool (T91T-1175-A). Refer to the following inspection list and service
procedure for details.
NOTE: DO NOT USE THE OLD HUB SEAL REPLACER TOOL (T85T-1175-AH). IT IS NOT DESIGNED TO INSTALL THE NEW SEAL. THE
NEW HUB SEAL REPLACER TOOL IS AVAILABLE IN THE 1991 DEALER ESSENTIAL SERVICE TOOL KIT AND IS THE ONLY
TOOL APPROVED TO INSTALL THE NEW SEAL.
INSPECTION PRIOR TO SEAL INSTALLATION
Prior to seal installation, make sure that the following items are checked and servicing action taken where indicated.
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Inspect the outer diameter of the hub seal to be sure that it is dry and free of oil and grease.
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Check the hub bore to be sure it is free of grease, dirt and debris.
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Remove any nicks or burrs from the hub bore.
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Inspect the inner and outer bearing for damage and replace as required.
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Pack each hub bearing cone and roller with a bearing packing tool using XG-1-C grease.
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Make sure that no residual grease from freshly greased bearings gets into the hub bore.
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Prior to installing the hub assembly, clean the spindle thoroughly and inspect the seal and bearing journals for nicks and/or scratches. Remove nicks
or scratches using crocus cloth or similar material.
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Wipe spindle clean and lightly oil with clean axle lube or engine oil.
Figure 1
REMOVAL & INSTALLATION PROCEDURE
1.
Install the hub in a soft jawed vice.
2.
Remove the hub seal as shown in Figure 1.
CAUTION: CARE MUST BE TAKEN NOT TO DAMAGE THE HUB SEAL BORE WITH THE SEAL REMOVAL TOOL.
