This aftermarket gearbox is a replacement drive component for the mower deck on compatible John Deere equipment. It belongs in the deck drive system and helps transfer power through the deck so the cutting assembly can run properly. Built to match OEM This gearbox is built as a faithful replacement for the original deck gearbox layout. Mounting points and drive connections are made to match the existing setup, with machined surfaces and standard replacement-part construction for proper fit and function. Installation Installation is intended to be a bolt-up repair using normal shop tools. No deck modifications should be needed when installed on the correct compatible mower deck; inspect related shafts, seals, belts, and hardware during the repair and replace worn parts as needed. .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; } }