Nice! Any before/after pics?
Here's a pic of the bracket removed, and with the box mounted before I got the caps. Notice the clamps land exactly where the brackets would be. This box is a Thule Hyper XL, which is the same dimensions as the Motion XT XL, but has a flat bottom all the way.
I found it easier to remove the entire rack to remove the brackets because of the small T25 torx bolts on the underside.
- Remove the 12 T40 torx bolts securing the rack to the roof. Carefully lift it off (it's light), and place it face down where you can work on it. I put it on a moving blanket to protect the surfaces.
- Remove the 4 T25 bolts that attach the bracket to the last cross bar. They are TIGHT and because of the size of the head, I actually twisted 2 bits, and was really afraid of stripping the head. Be careful. Use a quality hardened bit if you can.
- Turn the rack over, remove the 2 T40's that attach the bracket to the tube.
- Remove the 4 T40's that attach the last cross bar, tap it forward with a rubber mallet to allow the removal of the bracket.
- Reinstall the last cross bar. I also reinstalled all of the bolts to keep the holes clean of debris.
- Reinstall the rack.
The future installation/removal process will be easier because the T25's won't be as tight as before and I'll be able to work them with a 1/4" ratchet.