oh no not at all. Clunking when shifting out of park into reverse or past neutral to drive usually indicates worn Ujoints. If you haven't been greasing them at every oil change they are most like getting dry and the needle bearings are being destroyed. Metal on metal in at any point in either drive line is dangerous. If the Ujoint at the transfer case fails you will drop the back end of the front drive line to the road surface. Keepin mind it is still spinning in relation to the speed being driven when the Ujoint failed. It has the ability to bounce upward and pierce the floor board or while it is flopping and bouncing around it can easily damage fuel lines and/or brake lines. I point out the Ujoint at the front of the transfer case as being a failure point because it is usually the one that wears out first.Thanks Tony, If its just joints, not a big problem right?