Super common "my converter bearing is dying and blowing metal shavings into my trans" problem. I am talking to a custom converter guy here local into dealing with this cheap, like $80.
For you though your governor is full of metal shavings sad to say. Your throttle pressure cable and other adjustments aren't the problem.
The fix to start, you need an inline filter with a built in magnet. I just found one on the cheap today and posted it up.http://www.turbododge.com/forums/f4/...-got-love.html
Just need to find out which direction the fluid is going out to the cooler and then hook this inline for no more than 1,000 miles. Then put in a new one.
Second, buy the Sonnax govenor spring kit and use the V6 spring. You have to pull the valve body and then pull the govoner out. Then clean it so everything moves freely with WD40. Then add the V6 spring and put it back in. The Valve body is full of crud and you need to clean it with carb cleaner and lube it with WD40 till everything in it is moving freely. Now is a good time to add the superior shift kit.
The inline filter and the shift kit will help the trans to live longer at this point. But you need to take care of this before you out right break it. The spring kit and the in line filter are going to work wonders, the V6 spring raises the shift points just a hair and makes the trans feel more responsive.
Because of there metal eating converter bearings every single 3 speed auto out there should have this spring kit and inline filter added regardless of whether or not there shifting right now.