I stripped several screws in my old rails and easy outs and drills weren't working well enough to be worth the effort. These rails were not only a replacement but an upgrade! I LOVE that the rack slots are labeled. My only gripe is it would've been nice if the mounting holes had lined up closer to the original holes that were used on my old rails, but short of forcing every manufacturer to use the exact same measurements I don't see how that is even possible. This has been a great purchase for me!