GM / LMM Duramax / Differential Components
The ATS AAM Differential Cover adds 2.5 quarts of fluid capacity over stock and comes with all necessary hardware and gaskets to install. The cover has a magnetic drain plug to prevent fluid contamination, as well as a weep hole for easy service.
The weep hole can also be used for installing a temperature sending unit (not included) to read differential fluid temperatures. All ATS differential covers are powder coated black with a machined ATS logo.
AAM fits 2003+ Dodge and 01+ GM.