I had their original style gutter mounts and they broke within two weeks. All I had up there at the time was a 32" spare. Oh, and the rack would shimmy side to side something fierce. Very flimsy mounts for such a cool looking rack. Anyhow, I called them and they acknowledged the problem with the mounts and said they were redesigning them, but I gave up on dealing with them and went with Garvin. No noise, no shimmy... great rack! Maybe the new Kargomaster mounts are better though.