We can't turn OD on or off, unlike our old 2000 F150.
Our transmission doesn't seem to hunt. I use tow/haul nearly all the time when towing and it seems to select the appropriate gear at the appropriate time just fine. When I was going up the 10% grade at 50-55 mph, it was running nicely at 4,000 - 4,500 rpm and stayed in the same gear.
It also downshifts nicely when in T/H when slowing down going downhill.
I hear people saying they lock out their transmissions all the time and it seemed like a basic and simple thing to do. I thought maybe you just flicked the right switch or pushed the right button like when switching in an out of T/H mode. I don't seem to have any better idea of understanding "locking out" from the above posts and maybe it's something I don't need to know or worry about.
