[Back in Black]

You don't want to put a supercharger on a tired motor, OR tranny, nosir !

I am not a super/turbo expert by a long shot, but it will put some real stress on your system. Do you have a standard Jag rear end? How many miles? What condition? Even if in great shape, I hear 400 horsepower is the outer limits (won't last long even at that, from what I hear) There is a new 9 inch Ford differential/ Highly modified Jag IRS out there, I once posted it but lost it...I think it is on the ERA site. I highly recommend that you consider every aspect of your drivetrain before you just boost power. Consider your brakes too...upgrade as needed.