In the electrical section at Lowes with the conduit there is some material called uni-strut that you can purchase in 2 different thickness and in 10 ft sections. I have 2 pieces of that cut to the length of the rack. 2X Holes drilled through the top in the back, and 2 in the front that also go through the factory metal body panel that goes over your head where the dome light is. 1/2 nuts and bolts with fender washers and heavy thick rubber washers and copious amounts of silicone RTV the full length of the Unistrut to bond/bed it to the top and spread out the load so no vibrations/squeaks etc..(If you don't bed it in RTV it will make noise as the top slaps up on it when you hit bumps). When you bed it you barely tighten it down so you don't squeeze out all the RTV, let it sit overnight and then tighten it down. The roof rack is secured to the uni-strut by standard conduit clamps that are made to work with uni-strut. The Uni-strut also significantly reinforces the rack and spreads the load accross the entire length of the roof. If you intend to have limb risers you need to use the thicker uni strut.............2 years now no leaks, no breaks, no problems. I also really don't care what the paint on the top of my top looks like, some people do.