Transmission began making a high pitched "whining" noise a couple of weeks ago. Initially, there was no change in operation. I changed the fluid and filter as a precaution, but the whining continued. Last week the problem progressed to the point of almost total failure as the clutches take several seconds to engage. ( forward and reverse ) Once the clutches are engaged there is no noticable slipping. As the whining noise is happening in neutral as well as forward and reverse, I'm thinking I may be dealing with a front pump problem ? Trans. is currently removed so a pressure test can't be done. AnNyone have any suggestions?