I have noticed that my transmission is making noise when i put it in drive and go to take off also mking the same noise in reverse. The noise is very hard to describe but it does get louder with speed and it sounds like something winding up. it goes wooooOOOOOOO gets louder with speed but once i get going hard on it i cant hear any noises. It is very strange. The fluid level is full nice cherry red fluid color does not smell burnt. The transmission does not slip and shifts and downshifts fine. This A-518 is a non lock up in a 1991 dodge ram half ton 4x4 truck and i had this transmission fully rre-built back in september and it has less then 1000 miles on it. On the recipt with my re-build it says i got new torque converter new front pump new planetarie gears new sun gears new electric pack new everything besided the valve body basically. Queestion is could this be a symptom of a valve body heading out? or a servo sticking or something? i know 1st and reverse are linked together somehow and thats where i notice the noise the most. This transmission still has another year and a half on the warranty so i am really anting to pin point what this is or at least have some real good guesses so when i bring it back to the transmission shop they dont try sending me away in it saying its fine.