I have a friend who has a big power terminator and needs a SRA now. He is wiling to swap me over his IRS for free. Is there anything i need to be able to do this, or is it just bolt out and bolt in? Id really like to do it as 1. its free 2. it would make the car ride and handle better. I don't have HUGE power goals with the car but would like to create a mustang that can handle very well. Any replies are greatly appreciated.