5mm may be overkill, but that is what makes these TVPs cool. It seems fitting for this brutish truck to have a chunky overbuilt set of TVPs. I don't thing the drivetrain will be any worse for wear running these compared to other XL TVPs. I also really like how the screw heads are recessed into these. It is gives it a really clean, finished look especially when converted over to socket head cap screws.