LSx Valiant Build. Take a look inside...

cuda620 said

Looks like a drum or disc brake mustang one will fit. Still 8.8, some with posi and discs. Differential centered and mopar big bolt pattern axles.

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From what read you need the truck ones if you want to keep your leafs, the mustang 8.8's don't have the leaf perches on them, they have coils in the back.