Bolens 18311 38 Snowblower Peerless Gearbox 1728299WE HAVE THE GEARBOX IN PERFECT WORKING CONDITION. REMOVED FROM A 38 SHAFT DRIVE BOLENS SNOWBLOWER 18311. Our feedback speaks for itself. If the part is in question we throw it in the scrap pile. Powered by SixBit’s eCommerce Solution. The item “BOLENS 18311 38 SNOWBLOWER PEERLESS GEARBOX.