In the invention there is provided a disk brake stack having disks with available wear portions of a first thickness, a second thickness and a third thickness. The disk(s) having an initial available wear portion of a first thickness are of a thickness so that at the first overhaul, the available wear portion of such disks are only partly worn away and disks are about equal to disks having an initial available wear portion of a second thickness. The disks having an initial available wear portion of a second thickness at the first overhaul are only partly worn away and such disks are about equal to the disks having an initial available wear portion of a third thickness. The disks initially having an available wear portion of a third thickness at the first overhaul are substantially fully worn and are replaced by new or refurbished disks having an available wear portion of a first, second or third thickness. Also, the invention comprises a method of assembly and overhaul of a disk brake stack, utilizing disks having available wear portion of a first thickness, a second thickness, and a third thickness.