Pretty easy instructions, use an Exacto Knife to cut out slots on template. Use a Silver Sharpie to transfer hole pattern. Drill both ends of slot with drill bit, & use utility knife to cut the long slots. Only issue was Top Slots on Driver side Template ( see photo), did NOT align/ off by about 3/8”. Had to cut a much larger hole. All the other screws aligned perfectly. Start the Existing Factory screws loosely to start until the are all in.
At first I considered not purchasing these brackets but after completing the installation, the quality and fit convinced me these are worth the price. One word of caution, I discovered the templates are different when printed on my laser printer compared to those sent with the brackets.
Really cool looking mud flaps just installed on Chevy 2500HD. Very high quality and I am very impressed with the look. Just awesome!! Highly recommended for protection of your truck! I would give this 5 stars.