So I ordered a set of nerf bar side steps after researching on here that the there is no difference from the 07-04 models. After unpacking then and starting the install I figured out the on the '08 they moved the center cab mounts back about 2 in. So I had to get a drill and tap new holes for the center bracket to fit. Just thought I'd provide some info for those with 08's that are going to install steps, you will have to modify them slightly. After reading the box the steps are for an 04-06. but their website says 04-07. This is on the Crew Cab. While doing my research everyone kept saying it there wasn't a difference.