The bracket that you mount first can be slightly moved up and down but its not by much. It comes with self tapping screws and I plan on removing the tail lamp and replacing them with bolts. Also it wont open all the way because the cable for the tail gate is in the way so it opens only so far. Also with the extang solid fold, everytime you close and lock the swing case it hits the spring locking handle for the folding cover. its not an issue (just pushes out the way) but wanted to throw that out there.