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9.75 rear axle

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Old Apr 27, 2008 | 02:22 PM
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rgadley's Avatar
rgadley
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9.75 rear axle

The door code for the axle says "16", but the tag on the rear says "3L29". Does anyone know which code tells me what my axle actually is? I have an '03 Expedition. Thanks.
 
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Old Apr 29, 2008 | 03:10 PM
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04markIII
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From: Lunenburg, MA
what exact info are you looking for? i can get whatever you need with the last 8 digits of the vin number.
 
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Old Apr 29, 2008 | 04:29 PM
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rgadley
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My experience with ford would says it is a limited slip with a 3:29 ratio.I was told the 16 is 3:73. I would like to know if it is a limited slip and what ratio I have. The last 8 are 3LC32410.I hope this is what you need.Thank you for your help.
 
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Old Apr 30, 2008 | 01:37 PM
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04markIII
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3.73 open diff because you have traction control and rsc.
 
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Old May 21, 2008 | 08:10 PM
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If the first digit in the two-digit code is a number, the differential is not limited-slip.
 
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Old May 24, 2008 | 02:17 AM
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Axle Code

As a newbie to the list and this being my first post I'm not sure how to post a link but I have been researching Expy's for about 2 years and PaulC was correct. All Expy axle codes that are 16, 17, or 19 are non limited slip. H6, H7, H9 are all posi-traction (limited slip). I found the following in a PaulC post on a similar topic...

16 = 3.73 non-limited slip
17 = 3.31 non-limited slip
19 = 3.55 non-limited slip
H6 = 3.73 limited slip
H7 = 3.31 limited slip
H9 = 3.55 limited slip

Hope this helps.
 

Last edited by Gdog89; May 24, 2008 at 02:18 AM. Reason: correction
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