Driving my truck last couple of days the trans is doing some crazy ****.Go down the road turn a corner or just driving and trans goes like it was kicked out of gear.Free wheeling so turn truck off and restart and back to normal.Driving today and started shifting hard and OFF light blinking on shift handle,turn it off everything back to normal.Has been doing this off and on for last 4 years and wish someone could tell me how to fix this crazy thing.Bought new TPS and neutral safety switch and still does it after changing them out.I have a banks trans command on my truck and am wondering if that has something to do with it?...Anybody got any answers that has had same crazy ****?