SKB does the job!
I owned the 10 space version of this for about 12 years and it definitely did some traveling, sliding around the back of the truck and hitting the truck wall. I can't tell you how many times I'd hit the brakes, hear that sliding sound and a loud BANG as it hit the wall. I though I got rear ended a few times, but it was just my racked amp and effects. I never had any trouble with the rack case or the gear inside. I also own a 12 space shock mount one that hasn't been tested as hard, but it's solid.