ChuMaDD

I been having an issue with my brake and ABS light coming on after I had to drain my fuel filter on the highway cause my WIF came on. Didn't have any tubing on me to guide the fuel away from dropping straight down so some water and diesel leaked on the diff. I am thinking I might of shorted out the front ABS sensor but I honestly can't locate them. Does anyone have a picture of where they are? Or some guidance on where I should be looking for them at? I have a '96 CCLB 12v if any more info is needed please let me know. *I checked the rear ABS sensor and that one is good Also to add to it, I can no longer shift into 4wd assuming it is cause of the ABS situtation though. Thanks for you input. - - - Updated - - - Also to add too it.. When I bought my truck in the fuse panel under the hood I did NOT have anything (no fuse or relay) in the ABS locations indicated by the sticker but I am unsure if it was the original one with the truck. Should there be something there?