Last year the kick down switch on my powerglide failed. So I pulled the pan off and cleaned the valve body and checked the wore. That fixed that problem, but after I put it back together and replaced the gasket, she leaked, quite severely. So I redid the gasket, added some liquid gasket and put it back together again. But she still leaks. Which she didn't before I took it all apart.
Now from what I can see it leaks from where the lever goes in to the tranny on the drivers side. Even though I did not take anything apart there, I think the oil I put in could be thinner than the old oil that was in there, and that it leaks for this reason.
Now, should I go and replace the rubber ring that is there (see below), or should I look for a thicker oil (can't quite remember which one I put in there now, but I did some research and should be the proper type).
