Built to fit most 3/4-ton and 1-ton trucks with 8 or 10 lug hub patterns, including common workhorses like the 2500HD and F350 Gives your Pro-Cut on-car brake lathe the support it needs to cut clean, centered rotors every time Handles heavy-duty vehicles without flexing, thanks to a solid iron build that holds up under daily use Helps reduce rotor vibration and runout so your brake jobs come out smoother and safer Installs quickly and stays locked in place, making it easy for techs to keep the workflow moving Includes the following bolt patterns: 8 x 6.5", 10 x 7.25", 8 x 170mm, 8 x 180mm The Pro-Cut 50-683 HD Truck Adapter is a professional-grade hub adapter built to handle the demands of heavy-duty brake service. Designed for use with Pro-Cut on-car brake lathes, this adapter fits most 3/4-ton and 1-ton trucks with 8-lug or 10-lug bolt patterns. It is commonly used for vehicles like the GM 2500HD, Ford F350, and other large work trucks and commercial pickups. This adapter ensures a stable, centered mount for precise rotor resurfacing directly on the vehicle. It minimizes vibration and keeps the lathe aligned, helping technicians achieve a smooth, clean finish that improves brake performance and reduces comebacks. Crafted from heavy-duty iron, the 50-683 is built for daily use in high-traffic service environments. Whether you are handling fleet vehicles, commercial pickups, or heavy-duty service trucks, this adapter allows fast installation and easy removal, so your team can stay efficient without compromising quality. It’s an essential tool for brake shops and repair facilities that specialize in larger vehicles.