So this is what a rolled K5 looks like

[special-K]

A roll bar bolted to the floor can save your life in most circumstances. It can also make a rollover only a laid on it's side. Iy all depends of the forces involved. But probably a good 75% better than how the factory rolled them out with nothing. I have laid one over with my family riding. My wife broke her leg. I had a roll bar. This was a hiway accident, got tapped and sent into a sweeping j-turn into the ditch to the right, stopping with the R/F tire starting up the bank and L/R in the low point. No top and no one was tossed. The windshield got racked, L/F fender mashed, and some dents same side. It was repaired and I carried on with it for five more years.

I flipped a '95 K2500 on it's lid after going airborne over a Taurus from a hard side punch. The ladder rack bolted to the body acted as a roll bar