i have a 98 dakota 3.9l 4x4, problem is i was driving in 2 wheel and i lost eveything like i was in neutrel, got it in 4 low got it home checked tranny fluid smelt and looked good t-case had gear oil in it i since changed it to atf-4,it now drives like stuck in 4 low 50km per hour at 4000 rpm so i took the front drive shaft off and put lever to 2 wheel and still same problem front output shaft is still moving as well when in 2 wheel even with front drive shaft off does anyone have any thought about this im thinking t case is screwed up???