Overall, good rack. The black portion is powder coated steel. A few spots were chipped and immediately began to show surface rust. The company quickly provided touch-up paint, which was a plus. The rack is touted as easy on/off. However, you need to remove the tail lights in order to install/remove, and I don't consider that to be easy. I overcame this issue by using double faced tape on the lower bolt plate. Another option would be to use liquid steel on the plate.
TrackVan 2010 GMC Savana
Racks are the best looking, universa w/ ease of adjustment. Order was received promptly, install easy. Must not that the Express and Savana do need to use the drip/ gutter spans. Also if using the 3 racks, both ends need the shim plates due to the curved roof design. Always like all Track Rac products and would recommend any of thier products.