Brakes overheated-must I replace calipers

I think the problem with the original Bosch design had to do with the pins sticking on applications that sat for long periods of time, such as motorhomes. The thousands of Workhorse delivery trucks were not impacted because they were used on a much more regular schedule.

And I also think a contributing factor was the material the pins were made of, something about more readily corroding or some such...so just lubing the pins was out, they needed to be replaced.

Jim