This was supposed to be a really easy install.1st problem - one of the 8 little screws that attach the brackets to the channel just sheared in half. Head snapped right off. Not a biggie, it's a just a M10, and I had some extras laying around the garage, though an extra would have been nice to include. Of course, they're unusually short, so I had to cut one down to length.Then, when starting the final installation - turning the knobs to tighten it down - I got one about 3/4 of the way in (turning nice and smooth - not cross threaded). My guess is it hit a flaw in the threads; it bound, and then the rivet nut started spinning in the bracket. I had to completely disassemble - using vice grips on the rivet nut to get the knob out. Checked to make sure all the parts were steel - they were, so I was able to weld the rivet nut in place. They shold probably be tack welded at the factory. Chased all the threads- before re-assembling (taking extra care not to shear off any more M10's) - and it finally went together the way it should.So, if your install goes like mine, in addition to the reccomended tools, you'll need: at least one extra M10 screw, a cut off wheel (to shorten screw(s) to length), needle nose vice grips, a small grinder on a dremel to clean off paint for welding, a wire wheel for stripping paint off the bracket for a good ground, mig welder, 1/4-20 tap (to clean threads in the rivet nut), 1/4-20 die to clean threads on the knob, and paint.Maybe I was just unlucky with this one.