This part is a genuine General Motors part with GM OEM-codes GM #88900401/ACDelco #10-4016 & GM #88900330/ACDelco #10-4003.
Maintain your rear axle fluid by replacing the old fluid with this genuine GM/ACDelco OEM part.
This product is a kit which contains both bottles (as pictured).
This is a direct replacement for the existing OEM rear axle fluid.
This kit is not compatible with some models, see product description.