Quick question...I'm trying to chase down a vibration. I have the rear drive shaft out. I notice when I push up on the rear output shaft (to check for slop), the transfer case will move slightly to the right. The mounts on the left look fine. It looks like there is a mount on the right, but it's not connected to anything. It's just a rubber block hanging there. Is it supposed to connect to anything but the transfer case? The bolt through the center of the rubber block is tight but there is still a gap at the bottom. Does this make any sense? I cannot find anything in the manual about it.