Just finished hooking up my toggle switch and L.E.D indicator up, probably one of the best modifications I have done thus far. I guess cause the way it iss grounded out or whatever the TC wouldnt unlock so when I slowed or hit the brakes the engine and trans would kind of shutter cause everything was locked still. Getting onto the highway is no comparision, truck doesnt bog down when it shifts into 4th and the shifts arent so dramatic, get up to speed and lock it up. Doesnt take much to get that fluid hot but as soon lock it up I can almost see the temp guage moving and after a few minutes it will drop down to 175 ish.