The major advantage of lifting a vehicle for off-road use is the increased ground clearance it offers the body and mechanical components which can be further enhanced by allowing the fitment of larger diameter tires. Increased ground clearance and approach and departure angles help a vehicle navigate difficult terrain without contact with the ground, whilst the extra wheel travel associated with suspension lifts helps keep wheels in contact with the ground providing maximum traction.
Body lift is another means of raising a vehicle’s body height for more ground clearance, allowing the fitment of larger tires. However, body lift does not raise the suspension system. This may or may not increase approach, departure, ramp over angles and mechanical components distance from the ground. A body lift won’t give the greater articulation/wheel travel associated with a suspension lift. There are many other modifications that may also be required such as wiring, radiator hoses, brake lines etc. Larger body lifts always require an engineers certificate for registration.