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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Checking Rear End Fluid

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Old Sep 24, 2010 | 01:49 PM
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Roger T. Pipe's Avatar
Roger T. Pipe
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Checking Rear End Fluid

'96 F250 4WD 5.8 A/T, how does one check/fill rear end dif. fluid? I cannot see any plug or anything else.
Roger
 
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Old Sep 24, 2010 | 02:13 PM
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The plug is on the diff nose just forward of the axle tube. It may be covered with crud. Once that bung is removed just fill to that level.
 
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Old Sep 24, 2010 | 06:06 PM
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From: So Cal
Yeah and the plug will be a socket not a bolt head.

Usually a 3/8 square drive ratchet will fit. It may take a lot of torque to get it loose. I like to use a 1/2 breaker with a 3/8 adapter. Use good tools. I have snapped off a cheap 3/8 doing this.

Once the plug is out stick your pinkie in the hole and if you fell fluid you are good.

Most of us add fluid till it just dribbles out the hole.

Be sure you know what kind of fluid you need. Many use ATF not gear lube.

Good Luck,

Jim Henderson
 
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Old Sep 24, 2010 | 07:44 PM
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I don't recall ever seeing an axle call for ATF...
 
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Old Sep 24, 2010 | 11:43 PM
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Be sure you know what kind of fluid you need. Many use ATF not gear lube.
I also have never seen an axle call for ATF, I think you are thinking about manual transmissions....
 
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Old Sep 25, 2010 | 07:27 AM
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From: So Cal
Originally Posted by EPNCSU2006
I don't recall ever seeing an axle call for ATF...
Had an 86 Tbird used ATF in tranny and diff. Read of others but don't recall since I had no interest. I was rather surprised, but that's what the manual said. Loved that car.

Usually light duty vehicles using ATF. I think it was to squeeze a little more EPA rating for marketing purposes.

The key thought is "Make sure you know what fliud to use".

Jim Henderson
 
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