When I installed mine, I had a little trouble on the right side. The poly panel along the floor and side of the Ace that the nerf bar fits next to partially covered the front bolt hole. The panel has a round hole that the nerf bar bolt goes through to mount to the frame. The panel covered about 1/8" of the mounting hole. I had to loosen the torx screws that held the panel on and push the skin forward to uncover the hole. I never could get the bolt hole in the frame completely uncovered and had to tap the bolt into the hole with a hammer and the bolt deflected the panel a bit. It took a few minutes to get this bolt installed. As Luge says, they are very sturdy and I think they look great. The mounting bolts require a 17 mm socket. I hope that they deflect some of the floppy pine roots and briars that are still protruding from my trails. I am getting a small amount of damage to the black panels on bottom of my rear fenders. I am in the process of cutting the roots but at my age it is taking a while. I had much rather drive my Ace that cut roots.