80q abs noise question

[Tom Love]

I just had the R/F wheel bearing on my 80q with ABS replaced today and when it was all back together a new noise popped up.
Now when in the last second of braking there is a noise from the R/F corner and a pulsating feel in the brake pedal. If I switch the ABS off there is no noise or pulsating. Switch it on and it is back. I know the sensor is plugged back in.
Any suggestions?
TIA