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Old 04-15-2012, 08:21 PM
Rickey Burgess's Avatar
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a little help
i have a 2001 ford f150 supercrew and i have a 8.8/3.55 rear axle in the truck. will a 9.75/3.55 fit in my truck just wondering.
 
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Old 04-16-2012, 12:53 AM
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The whole diff will with maybe a drive shaft mod.

The 9.75 gears will not. A 9.75 has a 9-3/4 inch ring gear, the 8.8 has an 8 7/8 inch ring gear.
 
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Old 04-16-2012, 07:26 PM
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so what exactly do i got to do to make it fit then i am lost on this
 
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Old 04-16-2012, 10:08 PM
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If you are talking about trying to put 9.75 gears into an 8.8 diff? You can't.

If you are trying to put a complete 9.75 rear end in then it should pretty much bolt up, but the drive shaft will probably need to change.
 
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