Help with IDing rear diff

[Dleslie212]

The transfer case is a whole other thing... I took it out a few weeks ago and tried to pop into 4WD, but the linkage was seized which is a pretty common thing I guess. Anyway, linkage works now, but I haven’t had a chance to take it out and test it. It is a NP203 that I am 50% sure has been converted to part time. I’m going to jack it up tonight and see if I can spin the front driveshaft while it’s in gear. I’ll also look for that tag in the glove box, I wasn’t sure where the tag was supposed to be. And I’m sure I’ll end up opening the front diff at some point this weekend to take a look in there as well