Originally Posted by
yamaguy
I usually hold it out of od till i know that I'll be above 50 mph for more than a mile then I'll let it shift it into od. I will hold it out if it hunting Also like others said. My stock trans lasted 290k of heavy towing and snowplowing.
That's one of the great benefits of having a custom tuner with tow tunes. It won't shift into OD until there's a certain mph that's met. I know mine won't shift to OD in my tow tunes until I get to over 55mph, and then it still won't shift into OD if I'm still accelerating or have a significant load on the TPS, such as pulling a small grade. Very nice.