the rears, you take your old shock off by undoing the 2 bolts at the strut top and 1 bolt the attaches the shock to the axle. Then when shock is off remove the top nut off the strut and take the dust guard and bumpstop off and put on your new shock, make sure you use the nut that is already on the new shock to hold the bumpstop and dust guide on the shock.
If you look in the maintenance section there is a full guide in there