4 HI = street and HWY or light off road
4 HI (lock) for extra traction in most off road situations sand, mud, snow, rocky trails
4 LO (lock) deep sand, snow or climbing/decending steep hills(less than 50 MPH)
H2 MODS:
Xtremeflow Exhaust,
Power Flash Programmer,
Xtremeflow Intake,
Hella Bixenons,
Polished Skid Plate,
Chrome OEM Wheels,
Chrome Driving Light Bezels,
Rosen R6500