This gearbox rebuild kit is an aftermarket replacement for compatible John Deere rotary cutter gearbox applications. It is used when servicing the cutter gearbox to help restore proper drive function and address wear inside the gearbox assembly. Built to match OEM The kit is made to match the original-style fit and function for the intended gearbox application. Components are built for proper alignment inside the existing gearbox housing, without requiring changes to the cutter frame or driveline setup. Installation Installation requires gearbox disassembly, cleaning, inspection, and reassembly using standard shop tools. Check the gearbox housing, shafts, gears, and related hardware for damage before installing the kit, and use the correct lubricant during final assembly. .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; } }