sorry bud, no stock stuff left!
So, I got the 231 swap done. but i don't have any pics. not that there is much to see. but i talk about it
first thing, man its nice to be able to turn again. and it feels a bunch more peppy.
check out this link, this is what i followed for the most part http://www.jeepforum.com/forum/f13/transfer-case-swap-info-np249-np231-np242-685644/
Overall it went smooth. first up was pulling the input from the old 249. the case came apart no problem. then i pulled apart the 231. same deal. the shifter in this is a lot easier than the 242 to get out. so i pulled the input from the 231 for the one out of the 249. it dropped in no problem. reinstalled the snap rings on the outside of the input and now time to put the cases back together. note, i had a spare 249 kicking around that i pulled the input out of so i wouldn't have a jeep sitting without a transfer case in it. not that it mattered; it went very smooth.
now for pulling the tcase it was straight forward; pull the drive shafts and all sensors. at this point i cracked 5 of the bolts on the tcase loose. just so it would be easier. there is one bolt thats a pain on the passenger side at the top. to get to it, i dropped the tranny crossmember. it makes it easier. with access to all bolts now, i unbolted the tcase and pulled it out of the tranny (hehe) note, there is a lot of fluid that will come out of the tranny so make sure you have extra on hand. swapped the 'new' 231 in an bolted her up.
the only issue i've had thus far is the linkage; the little lever on the 231 did not have the little rubber grommet, so i have to find one. however, when i get my hands on one, then i can do the linkage. there is enough play in the 249 linkage though that it should work out just fine once i get that lil' grommet. i might crawl underneith and take a few pics later.
overall i'm pretty happy with it.!