So I changed my T case fluid tonight from the ATF fluid to 5-30 full synthetic. Drained it, put the two in the fill hole, then pulled speed sensor and added another one. From all I read its the way to go and have done this before with no issue. Well started truck, backed out and started to pull forward. Went few feet truck went to neutral and then said on dash put in neutral and select gear. Did so made little down the road and then did the same. Turned truck off, waited a few and started. Then continued. ABS light came on along with parking brake light, even though parking brake wasn't engaged. My edge CTS said I was in fourth and I went to manual mode and said the same. So im in limp mode and idk what the h&ll is wrong. I did pull speed sensor and wiped off when I pulled it and then re installed and plugged in. Any ideas. Did I mess speed sensor up? I need my truck in the morning. The only thing I can think is speed sensor but what could be wrong with it?