hertfordnc

Car has 118,000 miles, runs great. We've put almost 30K on it. I changed ATF and filter a few months ago. (yes, i used the right ATF) Tonight the trans did a bunch of bad weird things. Driving on the highway it begins surging, RPMS go to 4000 rpm. Slow the car down to about 45 and it stabilizes somewhat. Forced to stop at a light and it can barely move, at this point my wife pulled over and waited for me. When i got there the ATF was normal level, we fired the car up and drove off. She was able to maintain 45-50 for the drive home. ATF light came on but i could not retrieve a code. When i put it in park it made a grinding noise and park did not hold the car. Also clunks going into reverse. Obviously we are not driving it but there are no Subaru shops around here so it's gonna sit until i have an idea how catastrophic this is. Thanks