I looked around and had a hard time finding a for sure answer. But my rear door makes noise over bumps. It's loud and annoying.

What I've diagnosed so far.
The latch that keeps the door closed it working great.
The black rectangle piece on the door is cracked and chipped.
The door moves in/out not up and down or left/right.
The noise is from movement of the door to and fro the discos front and rear.

So? What exactly needs to be replaced or adjusted?

Thanks in Advance!

 

For a random update. I tested a idea from someone I saw had a similar issue. Wrapped the plastic piece in electrical tape and adjusted the metal holder piece on the truck. Much less noise! Yay! Now to actually figure out the parts name and replace it.