Spartan Locker AMC Model 35 27 Spline

The Spartan Locker is a specialized differential component designed to replace the internal spider gears within a standard AMC Model 35 carrier case. Engineered by USA Standard Gear, this locker is constructed from robust 9310 steel, ensuring high strength and longevity under demanding conditions. This mechanical locker provides a guaranteed 100% lockup, significantly enhancing traction in off-road and challenging driving situations. Its innovative design utilizes a spring and pin system, which simplifies installation and eliminates the need for traditional thrust washers, making it a more accessible upgrade for many vehicle owners. The Spartan Locker is specifically designed to fit AMC Model 35 differentials featuring 27 spline axles and a 1.560" side gear bore. This precise fitment ensures optimal performance and reliability when installed correctly. As a component of the drivetrain, this locker is a critical upgrade for vehicles requiring superior off-road capability and consistent power delivery to both wheels in low-traction environments.