That's your shifter or not your shifter, hard to figure out if you mean it looks like yours but you only have 4 options, not 5, or that is the picture of your shifter as you are sitting in your Jeep? The pic is of one with Select-a-trac which does have "full-time" or basically AWD that won't bind the driveline if driven on non-slick roads, as well as 2wd, traditional 4wd hi, and 4wd lo.
If you don't have the "full-time" option, then you have Command Trac, which is a traditional 4wd system without the AWD option.
Quoted from the Jeepkj.com forum:
Quote:
Command Trac = Basic 4x4 system, offers the following:
4-Hi = all 4 wheels move at the same speed, only ideal for slippery conditions.
4-Lo = all 4 wheels move at the same time, but offers more torque at lower rpm's (i forgot the ratio) great when ur stuck, or when 4-Hi just doesnt cut it
2-Hi = where it's spose to be all the time, just both rear wheels are engaged
now Selec Trac has all of the above plus;
4-Full Time = another name for all wheel drive. you can have this engaged anytime, as it allows all 4 wheels to move at different speeds (unlike 4-Hi, where you will get binding, when you have engaged on dry/grippy surfaces)
this is ideal for the likes light rain, curvy roads...etc....
hope tis helps...(anyoen else add on or what not...) i didnt get too technical on it, maybe someone else might...
the jeep website actually has cool flash animation explaining it's different 4x4 systems
Command Trac shifter: