Manufacturers, no longer care about repairing units. They want you to just replace it when it goes out. Like some transmissions that don't have a dipstick. Something else too, most people now days have no clue how to fix anything, and don't care to learn. Just replace it and move one, lazy people. Same reason you can't hardly find a stick shift vehicle anymore.
On to todays fun. So If you remember, I had tightened up the tv cable to make it downshift quicker, and hold gears longer. Tuesday it got to where it did wanna upshift until very high rpms. I ordered a sonnax tv valve kit, and new solenoids. New oil dipstick, I accidentally mashed it when I broke the dipstick and was trying to remove the tube. The dipstick was the easy part, I massaged the engine with a brazing torch till it was nice and warm. I was able to extracate it after that without pan removal. Then to the transmission, when it started acting up I backed off the tv cable to the stock setting, but that didn't help. Checking the fluid revealed that it was getting very dark. So today it got 8 quarts of fresh atf+4, which is hard to find locally. After replacing the fluid, tv valve, and solenoids it appears to be shifting right again. I have come to the conclusion that my loss of power MUST be the torque converter one way clutch. I have put out feelers, (questions), to a company asking what it would look like if the one way clutch siezed.