Thanks everyone.
Just to confirm, the lower hose on the trans is the return line correct? Is it worth reversing the flow to backflush the two coolers I have? All I have at the bottom of the trans pan, on the tubing, etc. is a very fine, thin layer of dark slime and a thick covering of the same stuck to the magnet. I will clean all of that and replace the filter, but is there anything meaningful for me to look at while I have it open? I have some down-shifting hesitation going into first. Sticking valve? No problems with the others. I've tried several different additives like Lucas to deal with a seal leak, but disappointed that the down-shift problem didn't go away. Would new fluid help fix that problem and some slippage? I climbed Mt. Washington with five adults and I noticed some slippage and leakage at the input shaft/tc, which last did that when pulling a 1500 pound trailer on somewhat steep terrain for about an hour. A 400 mile trip in high heat and what's been said here prompted me to put in my own aux. cooler. Makes me wonder if it's not big enough.
12Ounce, you now have me concerned about tarrying and leaving it in park while running the fluid out. I may have broken both of those "do nots" trying to drain the thing out.
I maybe ran it too long with not much coming out.
Running it through the gears did get more out. I think I got the incorrect impression in one the forums here and from elsewhere that it wasn't so critical to stop the engine just as the fluid stops coming out. Doing that will be somewhat challenging by myself. What would the consequences be of running it too much without the fluid?
