I just purchased a 2005 Rubicon unlimited my question is:

The Jeep has a six inch long arm lift, 35 inch tires and 488 gearing. This Jeep is 95 % off road, the only pavment it sees is from trail to trail. The electric lockers will only ingage in low train. I would like to have the option to lock up in high train. Does any one know how to disable or over ride this funtion?