Remember, short wheelbase rigs like the jeep CJ have a tendency to flip easy when lifted. It's possible to flip the old school (M.A.S.H. era) military jeeps at 35mph with the stock suspension. My dad was a motor-pool mechanic during Korea (in the US, they never shipped him to the war) and worked on vehicles that the R&D arm would test for new equipment. They also did bizarre things like flipping jeeps, running sand through the engines, driving into ponds of water at full speed. He's been rather down on lifted trucks since then so I heard all about it growing up.