These are a godsend if you're installing dually flaps on Chevy/GMC. Once I determined which side these were for (recommend a small DS/PS sticker or marking) it was relatively easy to line up the holes to drill for proper height and configuration. Custom sheet metal cut ensures that no metal is visible from the side or rear once installed, and provides more than adequate stability. Tip of the hat to those who emphasize using these brackets vice "standard" installation on duallys.
A manager responded to this review
Thank you for the feedback. The manufacturer has updated the install instructions to reflect which bracket goes on which side.
I contacted SHARPTRUCK, the weekend before Christmas, with hopes of purchasing Gatorback Mud Flaps-Denali for a surprise Christmas gift for my husband, due to the fact he had recently purchased a new GMC Denali. The customer service I received was "Stellar"! I wanted the mud flaps before Christmas and SHARPTRUCK communicated with me and kept me abreast of when to expect my shipment. My husband LOVES his mud flaps and we will be lifelong customers. Thank you!