[~The Jester~]

Some of the earlier 8.8 (Trucks and Exploders, before they put them in Stangs) had bolts at 12 & 6, like the diff picture. When they put the 8.8 in the Stangs, the bolts are spread apart on the top & bottom, like the gasket picture.

If you look at the different bolt patterns, the gaskets do look like they'll interchange. The 7.5 has bolts at 12/6 and then 4 others that straddle the axle tubes. The 8.8 has 2 bolts dead on the axle tubes, and the 4 at the top and bottom are spread apart. Turn the gasket a 1/4 turn, and presto.

I should have clarified a little bit more on my last post. If you for SURE have a Stang rear, the 12/6 bolts is a very good indication. Otherwise, go with the rounded/squared off look. Look for the factory ID tag (Yeah right!) that'll tell you exactly what it is. You can only make an educated guess at best, the only 100% way to tell is the tag, or measure the ring gear.

Sorry if I confused anyone!