I have a 1996 Ram 4x4 diesel with the 5 speed transmission. I bought this truck a couple of years ago. It has always had some play in the drivetrain. I jacked up the rear axle last week and there is normal backlash in the rear axle. Moving forward, there is a small amount of play in the splines of the two piece driveshaft. I can then turn the driveshaft back and forth and get majority of the play at the transfer case. At first, I was thinking chain in the transfer case, but that should only affect when in 4WD. Is there something that could be worn in the transfer case that I am not thinking about or could it be a hub or splines in the clutch. The transmission shifts fine, but not ruling that out, either. Any help would be appreciated. Thanks.