Abstract: In the invention there is provided a disk brake stack having disks with predetermined available wear portions of a first thickness, a second thickness and a third thickness. In the initial configuration a first group of disks is interleaved with a second group of disks. The first group of disks comprises thick disks and the second group of disks comprises thin disks which have an available wear portion approximately one third of the thickness of the thick disks. At the first overhaul, the thin disks are substantially fully worn and are removed. The second group of disks is replaced with mid-thickness disks which have an available wear portion of about two thirds of the initial thickness of the wear portion of thick disks. At the second overhaul, the remaining wear portion of the first group of disks is approximately the thickness of the wear portion of the thin disks. The second group of disks are removed and replaced with thick disks.