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What diff is this?

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Old Jul 31, 2023 | 08:10 PM
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What diff is this?

Hi all,
I'm looking to buy an F100 wreck - namely for the rear end to go onto another parts car and am trying to figure out the type of diff in it.
The ID tag is missing and by the look of it, seems like a 9 inch - but grateful for confirmation from the wiser folk here!



 
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Old Jul 31, 2023 | 08:12 PM
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9er.......
 
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Old Jul 31, 2023 | 08:48 PM
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Was thinking that, based off how the pinion gear drops down at the front and obstructs access to the diff housing bolts.

But anything else stand out?
 
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Old Jul 31, 2023 | 09:35 PM
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rear sway bar as a bonus...
 
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Old Jul 31, 2023 | 09:40 PM
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9" FORD rear.
 
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Old Jul 31, 2023 | 09:43 PM
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Yep!
Haven't seen it (sway bar that is) front mounted before - is that normal?
 
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Old Jul 31, 2023 | 10:25 PM
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Some aftermarket sway bars mount above like that.
 
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Old Jul 31, 2023 | 10:30 PM
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Had a Helwig that mounted that way.

As to any other information, not much can be determined without the tag. You could pull an axle to see the spline count.
 
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Old Aug 1, 2023 | 12:43 AM
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Looks like a common Ford 9" to me. Could be an 8", but being under a truck I still bet 9". Good luck that there is a tag under one of those front bolts. If you pull the axles, to get the spline count might as well pull the 3rd member and get the gear ratio. Does the end or face of the axles, the part the wheel center cap would cover if installed, have 2 small dimples/low spots? I believe that means big bearing rear axle.
https://www.ford-trucks.com/forums/1...l#post17374589


 
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