High lock and low lock

[3Hummer]

4hilock is what i use most of the time offroading, im a florida guy so mostly mud for me, i have had to use4 low before in sandy areas and areas with steep rocky inclines, usually i only go into 4lo when nothing else can get me out. Most of the time if your not in intense situations the normal 4hi mode thats used for road driving will usually do just fine, just switch it up when you find your self needing a little more.