Yes, I will absolutely be building a barrier behind the rear seats, probably this winter. I will probably scratch build something as I want it REALLY stout. I really question the ability of the dog guards to hold everything back in a heavy frontal collision. I've been in a heavy frontal in a car, and it's amazing what a suitcase will do to the back seat, let alone something heavy recovery gear, etc. I think it's one of the most underappreciated aspects of this sport/industry. I'm talking about something really heavy duty, 1" tubing at least, bolted to the floor, backstays attached to the top. It'll be almost like a 4 point roll bar.