Collection: Auto - Manual Input

Ensure smooth power transfer and eliminate vibration with our selection of Auto Manual Input components. At DIY Customs, we provide high-strength replacement manual transmission input shafts, durable front bearing retainers, specialized input shaft seals, and heavy-duty pilot bearings designed for a perfect fit. Whether you are replacing a twisted input shaft after a high-torque launch, repairing a worn bearing surface to stop transmission noise, or performing a comprehensive gearbox build, our professional-grade hardware offers the mechanical precision and surface hardness you need at unbeatable prices. From specialized input shaft shims to direct-fit assemblies for popular T-5, T-56, and NV-series transmissions, we carry the essential gear for every manual drivetrain project. Don't see the specific spline count (10/26/31), shaft length, or specialized input part for your transmission? Hit the live chat or call 412-882-8346—we can special order and drop-ship exactly what you are looking for directly to your doorstep!