TeeLew
Well-Known Member
This is what OSG offers https://osgikenusa.com/collections/lsd/ford . They don't state that _any_ of these were for the live rear (excepting 9 inch options). You clearly have the S550 Super 8.8 version. There are 2 other versions available which fit the 8.8 IRS with both 31 & 28 spline options. OSG told me these were *not* for the Super. Maybe they are & the rep was incorrect, that's entirely possible. In short, though, this is what is causing my confusion.yes, S197 = 05-14 mustang chassis (stick axle)
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