Thanks for the responses. The context provide by JamesBr is good. We're pretty good about using the engine, but this vehicle rear brakes seemed to be a little hot. And on long grades, the pumping action typically used to control speed when it gets out of hand leaves them hot. Except for the rear brakes for this vehicle, my brakes are long-running investments (thanks to Dad for teaching me to drive).
We have learned on this forum to keep the slides greased on the brakes: this was not done by the previous owner. We're catching a lot of maintenance items this year that the previous owner (a friend, and still a friend) was simply not aware were needed by calendar rather than by mileage.
We purchased it at (if I remember right) under 50k miles and are approaching 80k at this point.
We've replaced the caliper on the rear right with a Napa caliper, and going on some advise on the list for the age of our vehicle, are replacing the flex brake lines to the calipers before heading for So. Cal. next month. Hoping that we have an un-eventful travel.
So, deciding on the new Napa rotors. If the new caliper, lines, and a complete flush don't change the characteristics, it will be back to the drawing board, but maybe not for the drilled and slotted disks. But rather to determine what causes the wear not characteristic to any of my other vehicles in the last 30 years. :)
- Tim