When worn or failed, the impeller shaft moves up and down causing the auger belt to slip and wear leading to noticeable performance issues and noise. The front snow bucket must be removed and disassembled to replace the failed bearing. The auger belt is generally replaced with this repair as well. Cost of the auger belt average ~ $25 for single belt, ~ $50 for dual belt set. Cost of the bearing average ~ $30. Cost of the bearing retainer average ~ $20.