I just changed my tranny fluid today, tremec recommends dextron/mercon III at the quantity of 3.0 to 3.2 liters. I did around 3.4 and it shifts much smoother.
I cant freaking wait, getting the 4.10s put in tomorrow morning. :hail2: I hooked the speedcal up today, wish someone would have told me how much of a bitch it is to get the vss connector off the stock harness. I had to use a eyeglass screwdriver to finally get that bastard off.
Im going...
J-mod is pretty easy, we did it in a few hours. It definately wakes the shifts up, especially with a handheld tuner. http://www.tccoa.net and http://www.crownvic.net/tech/4R70Wnotes.pdf both have the info you need to do it.