Review on Amooca Mud Flaps Mud Guards for Chevy Silverado 1500 (2014-2018) and 2500 3500 (2015-2018) - Custom Fit, No Drill, Flare Splash Guards Kits - Molded 4 Piece Set (NOT compatible with GMC Sierra) by Ellington Gardner

I just installed them on my 2015.5 Chevy Silverado 3500HD and they worked fine with no need for new holes. They appear nice and solid and look very stylish. Yes, the directions leave a lot to be desired, but I've found that the secret of success is not following them exactly. First, use your own Torx T-15 screwdriver bit, small head, and knurled ratchet. This setup gives you plenty of room without having to rotate or remove tires. If you're complaining about working in hard-to-reach places in a modern car, you're still better off hiring someone to do all your work. The front valves fit with no problems and the holes line up perfectly. When you get to the rear flaps, first reinstall the two standard screws, leaving just enough slack to get the flap into position. Then rotate the QuickLock BACK (locking pin towards the rear bumper and away from the shield) and place behind the shield and wheel arch edge, tighten the screw from the front of the shield, align the shield and reinstall. Attach the fastener to the back of the sign and tighten the screw. The tool that comes with it is great for this and the valve can be tightened well and firmly and the fastener behind the wheel holds up well. Finally, tighten the two normal screws, done. The design of these things is awesome and installation is easy. I would definitely buy them again and the low price makes them even better.