Purchased a Car Part, Had It Installed and It Was Broken

[maxshuty]

It's a supercharged 07 mustang, I made way too much power for the previous rear end so I had to upgrade to a bigger one. You do need a gear puller for the one I have.

[souperdave]

I can't recall what sort of attachment pulls the races out using a gear puller, but a slide hammer sorta works too. Or JK's drift idea.

ExpertLaw: where you can get your mechanical opinions also!

Of course that's as they relate to the legal issue(s) that started it all.