This aftermarket blade drive spindle fits Swisher pull behind mower applications and is part of the mower deck blade drive system. It supports the blade drive shaft so the blade can turn properly under belt power. The shaft measures 4.25 inches. Built to match OEM This spindle is built as a faithful aftermarket replacement for the original blade drive spindle layout. The shaft and mounting design are made to match the required fit and function of the existing mower deck assembly without changing how the system operates. Installation Installation is typically a bolt-up repair using standard shop tools. Remove the related belt, blade, and mounting hardware as needed, then install the replacement spindle in the same position as the original. No cutting or fabrication is intended when used on the correct mower application. .product-description-v2 { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: #1d1d1d; line-height: 1.55; max-width: 720px; } .product-description-v2 > div { margin-bottom: 18px; } .product-description-v2 h3 { font-size: 16px; font-weight: 700; color: #1d1d1d; margin: 0 0 8px; } .product-description-v2 p { margin: 0; font-size: 15px; } @media (max-width: 768px) { .product-description-v2 { font-size: 15px; } }