tkdtim

So i've been reading the forums for a few months and theres some things that are mentioned alot, but I'm not sure what they are. Help me out.

1.) What does Discos mean? I assume its somthing to do with the sway bar or somthing in the front end...

2.) Most the aux lights that people run on their jeeps, are they Fog lights, driving lights, or spot lights?

3.) What do people mean when they install a kit to get 2wd? Are there jeeps with manditory 4x4 all the time?

4.) Air lockers, is it just like posi track where when a wheel slips it transfers the power to the other wheels?

Thanks guys !

okcjeeper

1. Quick Disconnects for the sway bar so you can remove it when offroad
2. It depends, can be driving, fog lights or offroad lights.. There are lights for jsut about every application.
3. THere is no 2wd kit..XJ's come with 2 transfer case options.. NP231 has 2wd,4hi an 4lo. The NP242 has 2wd,4hi,fulltime 4wd, and 4lo..Grand Cherokees I think had an alltime 4wd t-case..
4. I'll let someone who know more about them then I explain it..

whowey

1. Agree with OKC
2. Again Agree with OKC
3. What they mean is that if you have the NP231 and the vaccuum shift motor, you can install something like the Posi-lok kit. Basically its a cable that operate the shift fork that is under the vacuum shift motor. What this allows you to do is un-lock you front axle while your transfer case is in the 4-low position. This in effect gives you a 2wd low setting. Allowing for maximum power and torque, but without the front axle driving.

4. No... the ARB(the most common variety) works in this way. No air = no locker, just a regular open diff. Yes air = full locker. No in betweens.

Jsny1010

So with the option of added that cable is that like using the 4wd part time option? i heard that was 2wd with front assisted steering on slipery traction.. does that make sense?

BlueXJ

No, not really. What cable are you refering to?
4WD part time can only be used off road or damage will result.
4WD fulltime can be left on, no matter the road conditions (uses more fuel)
2WD is just that only power is transmitted to the rear wheels. Front driveshaft turns as do the axles but no power is going to the front differential.
Is that a little clearer Jsny?

Jsny1010

I was just confused a lil bit haha, this part time thing is um interesting to say the least..

tkdtim

Is there a reason they made both a part time 4wd and a fulltime 4wd?
It seems like it would make sense just to make them all fulltime 4wd.

okcjeeper

Well the terminology is comfusing. When you shift that 4wd shifter into 4hi or 4lo you are in 4wd the entire time till you shift out of it..The part-time just means you can't shift into it till you are offroad. THe fulltime 4wd option means you can shift to that on any road surface. So really the parttme and full time is just temrinoligy but no indictive of whether or not you are in 4wd or not, just what time of road surface you can use it in. Trust you get offroad and stick it in 4hi or 4lo you are in fulltime 4wd will not be in 2wd at all..

BlueXJ

Fulltime would be more expensive to run all the time. More fuel usage and some unpredictable front end drag on turns. So it was an option on the higher end vehicles.

tkdtim

So correct me if im wrong on open differentials. If I'm crusing onling in my XJ in part time 4wd and 1 front tire spins and 1 back tire spins at the same time, i'm stuck?

Thanks,
T

COSXJFAN

Basically yes. Usually it wil be the oposite sides that spin. That is why if you drive up an RTI ramp, you stop when two tires come off the ground, unless you have a locker.

gearheadette

So what kind of damage can happen if the 4wd is not engaged, disengaged, or ran properly?

btw, awesome questions, i never thought of them

COSXJFAN

You can damage the t-case in extreme instances. I always take my time, like an old man, when I'm switching in or out of 4wd. No need to rush and screw up something expensive!!