First off I got to say Thank You to @Chris O. for producing a wonderful tool for me to beta test for him. I've managed to test the speed sensors and see the right front is dropping out below 30 to 40 MPH. It drops to zero while the left shows signal. This produces weird ABS action and pulling left fairly hard. Everyone knows I've changed sensors and tested wiring. I've talked to several tire shops and found an answer. The tone ring has most likely broke free on the hub. So I'm hunting for a used