ABS light/cruise control problems

[97_stroke]

Well it all started when i engaged the 4 wheel drive at the lake last weekend. The ABS light blinks non-stop now, the brake wont shut off the cruise, the cruise shuts off sometimes when i turn the right blinker on, and i have no brake lights (blinkers and tail lights work fine). I have a 97 f-250 manual 5 spd. with manual hubs. Ive also replaced the speed sensor on the rear diff. two days ago with no changes. Any help would be appreciated. Thanks.