These AAM 11.5 spools are machined from 4140 steel, splined, heat treated and then finish turned on all locating surfaces for maximum precision and durability. Designed for AAM 11.5 axle applications, these spools provide a fully locked differential solution for high-horsepower street, drag racing, pulling, and off-road builds.

Each spool is available in multiple spline configurations to accommodate a wide range of axle setups and drivetrain combinations. Custom spline options are also available upon request for specialized applications.

This item is proudly designed, engineered, and manufactured in house at IMS.