i'm a regular on the jeep forum but my wife has owned a 97 passport for a little over a year now.is it true that all passports/rodeo's have limited slip 4.11 dana 44's i know mines a dana-it's 4.11-and says use a limited slip lubricant right on the cover. ?is going up a hill this morning one tire in snow other on fairly clear asphalt i almost had to use 4wd it seemed a little more slip then limited 6 months ago had one tire almost off the ground and it just went up and over anyways in 2wd. is this normal or is my limited starting to slip thanx for any help you guys can give