K so I got my jeep from a friend that had blown the t case out so he put a new one in it works fine

So here's the deal it's a np242j and I just bought everything for a np231j SYE
I didn't even look to see if it was a np231j cause they don't have part time and mine don't and my friends jeep have a np242j and has part time
So can someone tell me wat it is ,.... lol it a np242 with out part time and it's not blown out or messed up everything is fine ,...... Thanks ,

 

NP231 has Part-time Low, and Part-time High, and 2wd High only...........
NP242 has Part-time low, Part-time high, FULL-Time HIGH, and 2wd high..

easiest way to tell is look for the round New Venture Gear tag screwed onto the back of the t-case. it will have the model stamped right on there.

If it's missing, there are other ways to identify them. There is a whole chart listed in the December issue of Jp Magazine.

If it came factory with a 242, the Selector for 4wd will have:
2wd, part-time 4wd, full-time 4wd, neutral, 4Lo

If it came factory with a 231, it's possible someone bolted on a 242 to replace the broken 231. I believe they are interchangable, as long as they are of the same generation.

I am pretty sure the 231 SYE, and 242 SYE are the same, but you'd better check that for sure............

 

Ok but shouldn't the 242 have part time cause mine don't and I can't finger out why lol that's why I'm confused

 

They are all "Part-Time"
Only the 242 has Full-Time operation mode.

And Yes, you are confused