1994 Ford Bronco ABS light on, speedometer stopped working

I have a 1994 ford bronco 4 wheel drive, 302 V8, E4OD automatic trans. The engine and trans. Were both rebuilt about 20k miles ago. The truck normally runs great with no problems and I maintain it well. I used the truck for several days to hall off some tree limbs I had cut down and it ran perfectly. On the last day of the project I went out to use the truck for the first time that day and the ABS light was on, speedometer would not work, and the truck did not want to shift until high rpm and shifted very hard. The guy at the local parts store suggested a bad RABS speed sensor, which I replaced and had no effect. Any ideas?