Collection: Auto - Manual Trans Small Parts Kit

Complete your gearbox rebuild with precision using our selection of Auto Manual Trans Small Parts Kit components. At DIY Customs, we provide comprehensive small parts kits featuring high-strength snap rings, durable needle bearings, specialized woodruff keys, and heavy-duty thrust washers designed for a perfect fit. Whether you are performing a budget-friendly refresh to eliminate end-play, replacing lost pins and rollers during a teardown, or outfitting a performance gearbox with new internal retainers, our professional-grade hardware offers the mechanical security you need at unbeatable prices. From specialized countershaft spacer kits to direct-fit small parts sets 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 needle bearing size, snap ring thickness, or specialized small 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!