Rear Differential Axle Carrier 3.27 Ratio Replacement for Cadillac ATS AWD 6AT 2013 2014 2015 2016 2017 2018 2019 (Replaces # 2993015 23156305)

It's the same as the OEM differential. These aren't very difficult to install yourself. You just have to get past the weight (~80 pounds). Or you can have a mechanic do it for a few hundred bucks in labor. Being cast iron, it probably wouldn't hurt to get a can of rubberized undercoating, and spray it before installation. Otherwise the cast iron will start rusting.

Been looking for this over 2 years now from Cadillac,they say it’s on back order since 2021,couldn’t find this been searching over 2 year,I went on Amazon and I found this ,even though it’s not the original GM parts,but I bought this ,I show the mechanic and he said this will work ,and it did,over 2 years I couldn’t drive my car,thank you Amazon this part works in my Cadillac

This is a solid replacement for the Cadillac ATS. Its identical to the OEM part and seems to be a really good quality. The shell is cast iron with enameled paint coating. From what I can see, the price seems to be pretty competitive, however there is no listed warranty for this item so I would take that into account when purchasing. There is only Amazon’s 30 return policy. If you are not installing it yourself, sometimes it could take that long just to get a mechanic to put it in.