Hey that not fair, we are helping a guy that has an air locker, we can't get an air locker! <img src="/forums/images/graemlins/frown.gif" alt="" />
The best way I can think of is to cut one of the wires that goes to the rear axle and extend it into the cab to a switch. When you flip the switch to your air locker flip the other switch to disengage the ABS. You will know when it is deactivaded by the ABS light on the dash.

95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.