Brake bias valve verification

Steve, that's a little alarming that your rears are wearing faster than the fronts - implies you may have a serious f/r brake balance problem (obviously). Perhaps go somewhere open and desolate and try a couple hard stops to see if the rears lock up prematurely. Snap On (and a couple others) make a brake pressure tester that measures the clamping pressure so you can do side to side and f/r comparisons - helpful if you're unsure of whether a supposedly repaired bias valve is working properly....

 

This is a fast and DIRTY way to check, but not ACCURATE as having them properly tested.

i take NO responsibility for the below:
Have your car up on a lift.
Lightly push in the brake pedal lightly unit someone outside the car can not move the fronts.
The rears should be able to move when the fronts reach the point where they can not be moved.

Again, this is a fast and DIRTY check and DOES NOT and SHOULD NOT be used in exchange for a PROFESSIONAL checking your system.

 

Also, try driving around as normal using the brakes "quite" hard..

then stop and check the disc temperatures using an infra red pyrometer.

Typically, on the road, you'll see say 100 deg C front and 60 deg c rear after a "normal " drive.

But about 60% rear temp would be "reasonably" accurate.

If no pyro is too hand.... spitting on the front discs... the spit will bounce off boiling, on the rear it will stick... but you'll look like a goose at the roadside spitting at your brakes......