They started using 18 mm hardware after 1996. Most wrench kits use to not even have an 18mm combination wrench - let alone a long one ( measures 11 inches long). If your working on the rear suspension, especially the control arm you will need an 18 mm and this extra length will really help with the torque needed to remove some of them!
Special purchase. A must have for these newer models.
18 mm Long Combination Wrench - 1998 to 2006 Rear Suspension Work