Newbie rear axle question

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David Benham

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Jan 2, 2013
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Enid, OK
Hello, I'm new to the board, I just bought a '03 4x4 st, and am curious about the rear axle... I play around with fox and older mustangs, and I was wondering what rear axle the st has? Is it a 7.5, 8.8, or something else? Also, it doesn't appear that my st came with limited slip, so I was wondering if the 28 spline unit out of a mustang or a 31 spline unit out of a v8 explorer would fit 1 for 1? Thanks! --David
 
Axle in your sport trac is a 8.8 and its 31 spline there are several options you can use to put a limited slip or a locker in..
 

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