Does anyone know what would cause my aod to run higher rpms than it used to when in OD? It used to cruise around 1500 at 70 mph or so but now it's running around 2k. I haven't changed rear ends or tires, nothing has been changed. Worn out od servo? Or could it be engine related? It's not shifting as well as it used to, it was shifting late in all gears and I had to let off the throttle to do so. Yesterday I adjusted the tv and it is shifting a little smoother but still running high rpms crusing at highway speeds.