1. The rock sliders act as a skid plate, allowing the vehicle to slide over rocks, mounds and logs, instead of damaging the vulnerable sheet metal.
2. The rocker protection guards the side of the vehicle from damage caused when sliding into a tree or rock, as often occurs on slick surfaces.
3. When properly mounted the rock sliders provide a secure jacking point for lifting the vehicle to change a tire, or to add rocks or traction aids to extricate the vehicle from being stuck.
4. A well designed slider also acts as a step, running the length of the cab, providing easy access to the roof, racks, kayaks, etc.
5. In heavily rutted terrain, the slider allows the driver to use the bars as a transition point between the front and rear tires, as the slider allows for a smooth change from the front tire to the slider to the rear tire without causing damage.
6. On longer wheelbase vehicles, the rock sliders can act as a pivot point, effectively rotating the vehicle against a solid point (like a rock or rut) when under power. This action "cuts" the corner of a narrow, tight obstacle that does not permit backing up for a multi-point turn.