Don't worry about the evap code. There is a tsb on the evap system and when the valve gets gunked up it will throw a code. Mine does that occasionally and I just clear the code...no need to worry there. That evap issue is not related to the other stuff that is going on.
The ABS and slip light could be an ABS sensor issue. I'm not sure if there would be a code in the ECU for that or not? If it's a bad ABS sensor, that would be a cheap and easy fix. Did you go anywhere offroad and possibly damaged an ABS sensor? They are located just behind the front wheels. Maybe you can crawl under and have a look to see if the wire is cut or anything looks out of place. The sensor is held in place by a little clip, and if it came loose and got damaged, it could be as easy as putting a new sensor and clipping it back into place. Does your truck start and run properly in 2wd?
The ABS and slip light could be an ABS sensor issue. I'm not sure if there would be a code in the ECU for that or not? If it's a bad ABS sensor, that would be a cheap and easy fix. Did you go anywhere offroad and possibly damaged an ABS sensor? They are located just behind the front wheels. Maybe you can crawl under and have a look to see if the wire is cut or anything looks out of place. The sensor is held in place by a little clip, and if it came loose and got damaged, it could be as easy as putting a new sensor and clipping it back into place. Does your truck start and run properly in 2wd?