The Unitbody makes the XJ light, but it also contributes to the “throwaway” reputation. The fact is that if you wheel the Jeep hard, you will start fatiguing the metal. Eventually every wheeling trip will result in new cracks and doors and body panels that don’t line up anymore. Unitbody stiffeners to help counter this are available from many aftermarket companies, such as Rusty’s Off-Road, T&J Performance, Roc Dog Fab, and Ruff Stuff Specialties. Shown is a T&T Customs stiffener installed on a ’98 Cherokee.