For the rear, put a car jack underneath the shaft drive as when it comes to removing the lower bolt you'll need to move the shaft up or down to allow the bolt to clear the exhaust when you withdraw it. You'll also need to move the shaft/swinging arm up and down when relocating the bolt in order to get everything lined up. Put a bit of coppaslip or grease on the outside of the lower mounting eyes to help slide it in as it is a tight fit...oooh errr! Tap it in place with a block of wood and hammer. The job is very simple though, should take no more than an hour at a steady pace.