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What diff do I have?

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Old Feb 5, 2005 | 04:04 PM
  #1  
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sv250
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From: Kenner, Louisiana
What diff do I have?

03 F250 6.0 3.73 gears. Is it 10.25 or 10.5? How many splines? Im looking at a limited slip unit for a 10.25 and dont know if it will fit. I did a search and cant find any info anywhere. ID#731053f13 v420f
 
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Old Feb 5, 2005 | 04:35 PM
  #2  
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...Moved...to SD section
 
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Old Feb 5, 2005 | 04:53 PM
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You have a 10.5" rear axle, 35 spline.

The 10.25" and 10.5" used the same carrier.
 
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Old Feb 5, 2005 | 11:29 PM
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sv250
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Ok will a limited slip chunk from an 86 F350 dually with a 10.25 35 spline fit in my truck? I can get it for a really good price should I or wait and get the Auburn set up?
 
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Old Feb 6, 2005 | 11:12 AM
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The limited slip from the '86 10.25" should fit in your 10.5" rear axle.

Is it a stock unit from the '86?
If so there are probably some people here with stock limited slips with less miles and wear that they'd sell cheap.

Personally, I feel if you are going through the labor of installing a limited slip I would get a better unit than the stock ls.
 
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Old Feb 6, 2005 | 11:33 AM
  #6  
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If your going through the trouble to swap the diff, definately hold out for something better than the stock limited slip.
 
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Old Feb 6, 2005 | 01:46 PM
  #7  
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sv250
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From: Kenner, Louisiana
DCSpecial, your right. After some thought, I decided to just wait and get the Auburn. Thanks for all your help.
 
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