I have an 02 Ram with the NV5600 4X4. There are times that there is a strong ATF smell, either in the cab or right of outside of it. I do not have any fluid on the driveway and I have checked the transfer case and front diff. Both seem to have an appropriate amount of fluid in them. I checked the power steering and it also seems to be full. Is there vent on something that would allow vapors to escape? Should I just chalk this up to the notion that these old trucks just naturally smell?