Any difference between the different brands of dexron 3 atf? I just changed my trans fluid in my 700r4 and it shifts different now. before I used to get a pretty hard shift between first and second, but now I can hardly feel the shift. I can hear it shift by listening to the rpm's, but there's no lurch anymore.It doesn't slip when I'm pulling or anything. Is this a good thing or did I screw it up? I didn't put the most expensive dexron 3 in this time and don't know if that would make a difference.