That bungee idea is pretty good. Probly gonna do that. I was also of thinking of a rear strut bar. But if the box does demage to the bar..well that'll suck!
I'm from Albemarle. Not far from Charlotte. Got any pics of the bar?vegeta4ss said:most of the rear strut bars attach where the seats fold up and latch near the seltbelts....so if your box is flying around that much or even that tall then there is a chance it could touch it, but I never had any issues...even with a single 12" box unbolted in the back sitting in the spare tire hole. That thing REALLY flew around and didn't once hit my carbon cargo cover or my hypermotive bar.
Hey Red...where in NC are you? I have a megan racing rear strut bar that is just collecting dust because I swapped it for the hypermotive if your interested.