Ok. I'm driving down the road, it's shifting fine, rpm's are at 1800 in OD at 55mph. Out of nowhere, I feel a shift and the rpm's jump to 2100. If I throttle it, the rpm's climb to 2600. If I shift it manually, I can feel it downshift in each gear. I know it's not the OD. If you play with the throttle, you can feel the T.C. stalling. It's like I have a 2600 stall conv. all the time.
It did it to me a few days ago. I take it this am, and it's back to normal. If I throttle it, the rpm's don't change unless I hammer it and kick it out of OD.