Good afternoon, I can help. Would you like the Duramax plates on the front or rear flaps? Is your truck a dually or single rear wheel truck? I will be able to get you the links you need.
Here is a picture of the different styles on the Sierra. https://sharptruck.azureedge.net/webimages/thumbs/2385196_2020-2021-gmc-sierra-3500-hd-duramax-logo-gatorback-dually-mud-flaps-set.jpeg
The Protector is the option that works with the flaps.
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Admin answered on 3/23/2021