Replacement becomes mandatory when drum assemblies exceed 50-percent of original appliance value

https://telegra.ph/Simpler-Mechanical-Systems-Cut-Repair-Costs-by-Reducing-Electronic-Complexity-and-Diagnostic-Time-08-10

The drum assembly is the most expensive component to replace on a dryer because it houses the internal structure that must meet strict load-bearing and thermal safety limits set by manufacturers and regulatory bodies