Product InformationFront Cover fits AA 14-9.25; Rear Cover fits AA 14-11.25; Cast Aluminum Internal and external cooling fins; Separate fill and drain ports; Magnetic drain plugs; Stainless steel allen head cap bolts and fill plugs; Engineered cover design keeps oil on the gears (Rear); Deflects oil back onto the ring gear and into the pinion gear for cooler longer life (Rear); Extra capacity sump located at bottom for gears to pick up oil (Rear); Gasketless cover has integral re-usable Viton O-Ring (Rear) Differential Cover Pack, Front AA 14-9.25 & Rear AA 14-11.5 – Dodge 2500 2003-2013 / 3500 2003-2012Fits: Dodge Ram 2500 Laramie 2003 Dodge Ram 2500 Laramie 2005 to 2010 Dodge Ram 2500 Power Wagon 2006 to 2010 Dodge Ram 2500 SLT 2003 to 2010 Dodge Ram 2500 Sport 2006 to 2007 Dodge Ram 2500 ST 2003 to 2010 Dodge Ram 2500 SXT 2008 to 2010 Dodge Ram 2500 TRX 2010 Dodge Ram 2500 TRX4 2006 to 2007 Dodge Ram 3500 Laramie 2003 to 2010 Dodge Ram 3500 SLT 2003 to 2010 Dodge Ram 3500 Sport 2006 to 2007 Dodge Ram 3500 ST 2003 to 2010 Dodge Ram 3500 SXT 2008 to 2009 Dodge Ram 3500 TRX4 2007 Ram 2500 Big Horn 2013 Ram 2500 Laramie 2011 to 2013 Ram 2500 Laramie Longhorn 2011 to 2013 Ram 2500 Lone Star 2013 Ram 2500 Outdoorsman 2012 to 2013 Ram 2500 Power Wagon 2011 to 2013 Ram 2500 SLT 2011 to 2013 Ram 2500 ST 2011 to 2013 Ram 2500 Tradesman 2013 Ram 3500 Laramie 2011 to 2012 Ram 3500 Laramie Longhorn 2011 to 2012 Ram 3500 SLT 2011 to 2012 Ram 3500 ST 2011 to 2012