New and used are pretty simple concepts to grasp. But remanufactured and rebuilt? When it comes to heavy-duty replacement parts, they're two different things altogether. Todd Kindem from ArvinMeritor's Commercial Vehicle Aftermarket group explains. Time: 3:35; size: 1.6 MB. Intro music is Edie Carey's "Under a Sky"; exit music is Amplifico's "Flutter." Both are courtesy the Podsafe Music Network.