I have a 2005 2500 2wd. When I hit bumps and when turning right or left it makes this creeky noise. Also noticed it when parked and I turn the steering all the way to the right and then to the left. What do you guys think it could be?

 

I'd start with u-joints. Mine was doing the same squeaky noise when the wheel was turned to the right or left. Replaced u joints and sound went away.

 

Being it is a 2WD, I would start with ball joints being dry, then work out from there to tie rod ends.

Possibly the front end bushings, but more likely ball joints.