2004 SD 250, FWD, 75000 miles. While turning around in the grass at my farm today, wife came to the window and asked what is that noise??? Said it sounded like dragging a rake across concrete. She drove around me in circles, no noise, soon as she moved the steering wheel back & forth a bit, I heard it too. Not very loud, not all the time, no effect on function; reservoir is full. Any comment??? Suggestions??? PJHeck

 

Flush the fluid and see if that helps. Should be ATF in there.

 

had the same problem. flushed it and filled it with moble1 atf now no noise for 1 1/2 years.