so i bought a bronco, its an 87 with electronic 4x4 but manual lock hubs, he said every so often when youre driving it'll randomly shift into 4 LO even when youre driving which ****s everything up, he said sometimes it doesnt shift into 4x4 at all but its not the transfer case. so im wondering, is it the transfer case motor that wouldbe going? or something between the switch and the ECU?