I am far from a TOD expert. In fact I can barely spell it. <img src="/forums/images/graemlins/lol.gif" alt="" />

However, I will try to ask a clarifying question or two.

Are you saying that with the hubs unlocked that the front wheels are still driven, or are you saying that with the hubs unlocked that the front driveline is still engaged?

Did you recently install the hubs or has it always acted this way?

It sounds to me as though the system is working as designed. I do know that there are details somewhere of a modification that is needed to disable TOD. You might check at planetisuzu.com.