Just finished installing a set of black running boards for our white 2500 S high roof. They came from nvvan.com. These look great with all of the other black trim pieces and are rock solid. Our NV is being converted to an RV so appearance was important to us. The wife loves the running boards - not much else needs to be said. But I will: The packaging was excellent and delivery was quick. Instructions are first rate and there is an excellent installation video on the website. I have a few comments on the installation: 1. Drill a 1/8" starter hole to guide the 5/16" bit. The pinch welds are, of course, comprised of two layers of metal. However, those two layers are irregular to each other with the exterior layer being longer and rolled under for appearance. Without the 1/8" starter hole, your 5/16" bit may drift lower as the hole starts. If this happens, the bracket will not be as tightly seated as you would like. 2. Take the time to daub some metal primer paint in the 5/16" holes that you drill for the main brackets. I used a Q-tip for a brush. 3. The video will tell you about the horizontal brackets and which mounting holes to use (starts at 5:35). I have the black boards and followed those instructions. I pulled the running boards all the way out to the tapered ends of the horizontal brackets (tighten lightly at this point) and then lifted them up and all the way out until I got a good bend in the flexible black vinyl flange where it touches the body (see 7:08). You will notice on the video that this places the flange in front of the black plastic plugs. My set-up has the top edge of the flange riding in the body crease that is just forward of the black plugs (which is a good way of knowing that you have things straight). Just decide if you want the boards level or slightly tilted before securing all bolts and nuts. 4. I wish I had taken the time to grind a smooth radius to replace the sharp corners in two places on each main bracket - but it is really no big deal. I will, when the weather improves, coat all of the brackets with zinsser and then apply black undercoating. 5. Installation was as simple as the video shows. I did this by myself in about 3 hours out in the carport driveway. If I had been 20 or 30 years younger or had a lift, it probably would have been a 45 min job. I'll not bother to post pictures, just look at their website. Mine look exactly like that except I do have the factory mud flaps installed - no problem.