So if you've read the thread on the plug wire fiasco, you know I'm still learning this truck. I've been a fan of NGK TR 55/6 plugs for a long while now. When I got to NAPA I asked if the TR 55 would work and they said yes and sold them to me. I pull a plug on the truck and its a champion with a fire ring. My NGK plugs are beveled no fire ring. The question is "Am I good to go?"