I can tell that it is slipping a bit when I shift it into od. If my foot is on the pedal light it slips a little longer but if I have a bit of throttle on it it slips less and goes in quicker. Once it engages it is fine. I just wonder what it means. Is OD on its last legs? Or does it just need an adjustment and I can squezze a few more miles out of it? Im really easy on it. Never tow with it, always go up hills in D, and Im never in OD til 60mph or so on the flats. I know the 700r4 isn't the best endurance tranny ... but I sure love it when its purring in OD.