The Fuller- Transmissions Auxiliary Drive Gear Kit is the perfect solution for reliable performance and long service life. This kit is precision machined and manufactured to ensure proper fitment and performance. It includes a main drive gear, a retaining ring, a pin and a main shaft spacer. This kit is designed to meet exacting quality criteria and is perfect for those who need reliable performance and long service life. With this kit, you can rest assured that your transmission will be running smoothly and reliably. FleetPride is your First Click in Heavy Duty®.