Skid plate precut mounting holes lined up very well to frame. I had to do some trimming on the front outer corners to clear my tubular rock sliders. Also trimmed a half inch to a taper on the left outer edge to relieve some interference to the left tubular rock slider. I replaced the front 5/16x 3” bolts to 5/16 x 3 1/4” bolts to ease installation. Also trimmed the leading and trailing edges to front and rear skid plates to a 45 degree taper to create a ramp should it contact any obstacle straight on. My modifications weren’t necessarily required if it wasn’t for my preexisting rock sliders. The taper to front and rear edges was just a personal touch to avoid shear effect should it make contact straight on a solid object. I have not had it on the trail yet for a test drive. However, I’m confident it will be a great improvement over the flimsy busted stick plates.