keep the old hub it is probably good. I have an Impala and the chime would come on and my traction control would turn off, not sure if I saw the brake light come on. also had a message on the display on the dash ( base model impala) about the traction control being disabled. it did this everyday except when it rained , when it rained it worked perfect. So I replaced the wires from the speed sensor on the left driver side as far up to where the merged into the wire harness. you can get a kit with the metri-pack connector on the wire. forget their splice that comes with it I solder and used shrink tape with electrical tape wrapped around. I figured there was an open the the water bridged in the wire or connector.