I hope this is on topic. Since BO Vehicles are a common topic here, I figured it might be a good place to ask.

I'm always throwing heavy stuff in the back of my SUV, a Pathfinder. Power tools, generator, 12V AGM battery, etc. I usually have stuff in some kind of box, but that box will sometimes weigh a ton.

My concern is that in a bad accident, where the trucks rolls or otherwise gets in a situation where gravity isn't keeping this stuff on the floor anymore, these heavy projectiles could clobber the occupants and be potentially more lethal than the actual crash.

But there are only a couple really flimsy little tie-downs back there, which, compared to the webbing and hardware for a seat belt, look completely inadequate.

Any suggestions? This must be a common concern, but I haven't found anything that looks very effective.

Thanks! David