I had problems that went away after I ripped my trans open, cleaned things up and changed fluid. So I say it's worth a try. If you go deeper than just the cover/filter then be warned there are check balls that will try to lose themselves and you should note where they go. You will also need an inch/lbs torque wrench to reassemble correctly. I also had incredibly bad slipping after I damaged the tab that holds the wireing harness/connector on the right side of trans (passenger) It might be worth carefully removing that connector and making sure it is clean.