560sl 86. Been having some slipping in and out of gear, wrong shift points, general malaise with my Trans. Only thing I new to do was change the filter, replace the fluid and see if I could stall the grim reaper for a while. I did the filter and fluid (and the TC). The old filter obviously had been on there a good many miles. Afterward, it drove OK for a few short trips-seemed a little odd at the shift points, but driveable. Made the mistake of letting my wife drive it about 20 miles to get to work. About a mile from her office, she said it started slipping and she barely limped into a parking space. High pitched hining, no torque, hardly any forward thrust.

I went to pick up the car and it was not reading on the dipstick so I added 4- 5 ounces of fluid up to the middle of the mark on the stick and it drove just fine going home although I babied it all the way.

This morning, taking my kid to school, got about 3/4 mile and it started squealing, lost torgue and I had to coast downhill just to get back home. I left it to get my kid going but when I got home, it started and went in all gears and back up the driveway like nothing happened. Huh?

I guess I'm going to have to take it in for surgery, but what should I suspect is the problem?

Thanks.

JB