Thanks
I understand the sensor part. I figured the 2-celled master cyl resevor would indicate by having less brake fluid, which axle needs the pads.

Maybe there is not a seperate fluid resivor for each axle?

My dealer said they did the rears under warrenty about 3 months ago, I looked at them and they look thin, but that was before I bought fronts.

Fun fun
Kevin
Phoenix