You'll be fine in part time, and probably would be in full time. Not sure how the 60/40 of the full time would act without the rear driveshaft, if it were me i would put it in part time. And it wont act like a locker unless you have a locker.

 

my XJ only have part time. iv never seen it in full time. I'm not talking anymore about having a rear ds or not.

 

Then what are you talking about?

 

I'm talking about the difference between part time and full time and that i only seen my vehicle go in part time and i don't think it has a full time..and asking which is better which i feel like part time would be just wondering if thats right..

 

part time is 50/50 and should only be used part of the time.
full time is 60/40 and can be left in full time all the time. acts like an all wheel drive.

full time has a viscous "clutch" in the case, that's why i said to use part time option with no rear drive shaft, you don't want that clutch to burn out.


part time (231j command trac) has 2hi, 4hi, n, 4lo
full time (242j select trac) has 2hi, 4(hi) full time, 4(hi) part time, n, 4lo

 

i don't have an option on whether to choose part or full. i have np231. thanks for the info

 

so then your 231 is a part time only case.

 

yup

 

Haha you will be fine running for short period of time. Like a week or so, no long trips or high speeds.

 

Part Time = Full Locked Transfer Case
Full Time = Limited Slip Transfer Case

You would not want to try this in full time because you'll burn through your limited slip clutches inside the T-case. Not sure where this 60/40 stuff is coming from, you'll send 25% power to every tire until one starts to slip, me thinks. Maybe it's a marketing thing.

As far as driving with front drive shaft only, you'll be fine. The risks are:
Front driveshaft breakage (It's just not as strong)
Front Differential / Axel breakage (It's just not as strong)
More stretch on the transfer case chain (It's not really meant to take all the power)

What this equates to is just don't drive anywhere near the limits of the vehicle, and don't do it for a really long time or a T-case rebuild to replace the chain may be in order. Drive it like a worn out civic and you'll be good for a long time.

 

I had a smartass comment but I thought better of it, so don't mind me.

 

So I have a 2001 cherokee sport and it has part time. I just blew the rear u joints apart at 70 mph. I had to drive it to a friends house in 4x4. My question is would it mess it up driving 2 hours on the highway to get home or not?

 

The 242 has a mechanical differential, not a viscous clutch.
In Full-Time with no rear drive shaft, the jeep will go nowhere, center diff allows the rear output to spin but not the front.

 

This.

Iirc the 249 In the GC used viscous couplers in their AWD models. And the 242 is 60/40.

 

i would do it. just take it easy and don't race it. be steady on the go pedal.

just be sure to pull the rear shaft if you haven't already. (i'm sure you have) and you will be good to go.