You know, mine was getting a bit hard to shift. When I did the tune up MANY years ago, I decided to change the tranny fluid. Based on recommendations from this site, I used Redline MT-90, and the problems magically went away. From what I have read here, I am not the only one this has happened to. Since then, I use MT-90 exclusively for the transmission. Might be worth a shot to try changing fluids...