American Axle AAM bare open carrier case are uniquely designed to match the requirements the OEM designated for your specific vehicle. All performance factors for the size and weight of the specific vehicle must be taken into account. Only original equipment quality components are guaranteed to meet the same specifications as the parts they replace. AAM components mean performance to the vehicle manufacturer's standards. *Spider gears and internal parts not included Application: 1973-2018 GM 10.5" Chevy 14 Bolt Rearend (with full float bolt in axles only)