I have a 1993 Legacy sedan with 170k miles that I recently purchased. Last week I noticed the tranny slipping as I accelerated from stop. I have identified 2nd gear as the problem. I was planning on changing the ATF and filter today, when I stumbled upon this forum. I get the impression that since the filter is more of a screen that dropping the pan is a waste of time. The fluid is very dirty and probably not been changed in quite a while. I am concerned that the problems are worse than a fluid change will help, but its worth a shot. Any thoughts or ideas would be appreciated.