- Hardened ball stud made of OE equivalent or better materials to withstand higher loads - Patent pending dust boot with encapsulated Belleville washer help control axial and radial movement - Powdered metal gusher bearing design enables grease to flow through bearing to stud for reduced friction and enhanced strength - Premium forged housing with increased cross section of up to 52% more material in key areas - 2003-2009 Dodge Ram 2500 5.9L, 2003-2007 Dodge Ram 3500 5.9L, 2003 Dodge Ram 2500,Ram 3500 - 2012 Ram 2500, 2011-2012 Ram 3500 6.7L 5.7L