Fit Silverado radar bar 1 Step 1 of 6Modified the supplied bar 2 Step 2 of 6Small washers 3 Step 3 of 6Fit top holes 4 Step 4 of 6Put a big washer and a non-Lock nut to the backside 5 Step 5 of 6Fit bottom Fasteners and tighten 6 Step 6 of 6It should not look like this