GM 10-bolt 8.5″ differential internal kit replaces all the internal components of a standard open differential case. For use on axles with 30-spline shafts. Includes side gears, spider gears, thrust washers, cross shaft, and retaining pin. The components of this kit meet or exceed the strength tolerances of the factory original parts.
NOTE: Please make sure you’re buying parts for the correct GM 10-bolt before ordering this kit.