The 4wd durango/dakota has the front diff bolted to the case and the ram is missing some of the bolt holes for that. In order to run a ram case in a dak/dur you have to leave out two of the 3 bolts. I have one on the road like this and i's probably ben ten years and no issues but now I just try to make sure I am building the right case, that first one I had in the durango before discovering the difference. I see no issue running the dak.dur trans in the ram, just a couple un-used bolt holes.