For the rear springs, it's recommended that you unbolt the half shafts from the diff to prevent damaging the CV joints. You'll need a torx socket for this, I forget what size.
Also, get a friend to help, you'll need and extra set of hands.
"Driving is like a narcotic, an addiction that can take over lives. It ruins people, breaks families apart, and even kills. Itís habit that needs to be fueled. Time, money, rationality, sweat, knuckle skin, and anyone who disapproves are of little importance to a driver, and are often overlooked. Hi, Iím Nelson, and Iím a drivaholic."