Well I've finally done the 3.09lsd swap in my own car now and I have to say it's not as hard as it seems but I do recommend that you use a lift and a transmission jack to do it and also have 2 people. The tools needed are a 15mm socket, a T50 Torx bit, a screwdriver, and a 21mm box-end wrench. I will attach the instructions provided to the dealership for technicians. You'll need around 6 hours at the most if you're doing this on jack stands as I did but if you're using a lift you can expect around 3.5-4.5 hours. The only part required for this swap is the diff itself self but to be safe I would replace all the hardware just in case. Also, don't be afraid to give the driveshaft a couple of taps if it's not wanting to disconnect from the diff after you unbolt it just make sure not to mar it or dent it as that could mess up the balancing which can cause vibration and possibly cause the trans, carrier bearing, and/or diff to wear out prematurely causing you to have to redo this or something more major. If you have any questions don't hesitate to ask me id be more then happy to help.