Check your motor and tranny mounts to start with.
If these are under your transfer case than that could be your noise. Autozone, NAPA or Carquest will have them and they are sometimes called transmission mounts even though they go under the transfer case.nmetankrc said:okay the motor mounts seem fine, but what I did find is that i'm missing a bushing(?) mount, the soft rubbery thing(i dont know what to call it)....the three that are on there look worn out, and the other is missing....could that be the problem?