How much gear oil? - F150online Forums

How much gear oil?

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Old 11-29-2003, 11:40 AM
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Join Date: Dec 2001
Location: Upstate, NY
Vehicle: 1998 Ford F-150 4X4
Posts: 97
How much gear oil?

How many quarts will i need to fill my rear diff, 98 4.6/auto/4x4 3.73. Nothing heavy duty, no trailer towing ect..

I read a few threads but can't find an amount. I picked up two quarts, (Valvoline synthetic), but have a feeling i'll need more. (Rusted through cover.)

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Old 11-29-2003, 11:58 AM
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Join Date: Oct 2003
Location: Topeka Kansas
Vehicle: 1999 Ford F150
Posts: 1,490
I have a 1999 F150 Lariat 4x4 extended cab with the 9.75 axle. Haynes manual specifies 5.7 pints or about 3 quarts.
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Old 12-01-2003, 08:32 PM
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Join Date: Jun 2002
Vehicle: 2002 Ford F-150 5.4L
Posts: 4,243
Fill it till it starts running out the hole...
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Old 12-02-2003, 03:01 AM
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Join Date: Apr 2001
Location: south western NYS Latitude: 42.34 N, Longitude: 78.46 W
Vehicle: 1996 Ford F-150
Posts: 918
Originally posted by Galaxy
Fill it till it starts running out the hole...
It is really that simple, excellent answer!!!!
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