No, actually I'm talking about the pos rear suspension going into snap oversteer when transitioning the center of the corner, but in any case, I don't think it would be that big of a deal to make a mustang work, it's just that this whole drift deal got started in Japan with (of course) Japanese cars, so it stayed their awhile and it never really caught on with the domestics until Ford and Chrysler got involved a few years ago.
You're talking about powerovering out of a corner which is gay.
I'll not go into what I think is gizzay, but when you're asking advice it may not be wise to insult the people you are asking.