So I changed from 3:55 to 4:56 gears with a posi... The ABS light is on and engages like it should as if you were sliding under normal braking conditions. Does anyone know the cure for this?

 

Service manual says you are supposed to remove the sensor on top of the diff housing BEFORE pulling out the diff. I would replace the sensor

 

Did you make sure the "tone ring" was reinstalled back onto the ring gear?
It's been missed out before.
Al.

 

Hey guys thanks for the input. Been too damn cold to try much. But I replaced the sensor. Abs light is still on. I believe the abs was actually engaging cause of the speed sensor on hub. Cleaned it up and it's all good. Still blinking abs light though.