Quote:
Originally Posted by LazyAzzAlex
no i know they have different part numbers, i just wanted to know what makes them different
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I would assume they fixed the recall issue. It also shows it is 1" longer. If you go to GM parts site and put in the 2016 rack number they do not fit the 2017 or higher and the same if you input the 2017 part for the 2016 so I doubt they are interchangeable. They are interchangeable from 17-22 according to the parts catalog but it looks like those years every suspension RPO code has a different part number so if you are buying for a 17-22 you'll also need to RPO code, FE3, FE4 etc.