I have a new to me 2000 D2, did not have the locking diff cable or mechanism attached. I just bought some parts with another transfer case included, it looks to be out of an 04’ because it has the cable to engage the the CDL. Is the a best way to figure which one is in better shape? Both are sealed up still no leaks, I can compare fluids and inspect inside the cover, what do y’all think?