NP271 & NP273 t-case Seal Front & Rear Output . NP271 & NP273 Transfer Case (New Process) Seal 2.122 ID 2.888 OD 0.50 Width Features and Benefits: NP271 & NP273 Transfer Case (New Process) Seal 2.122 inch ID 2.888 inch OD 0.50 inch Width Details: AAP UDA 4: 50 Application Summary: 336 2011-2012 Ram 2500 (Rear, Front) 2011-2012 Ram 3500 (Front, Rear) 2006-2008 Dodge Ram 1500 (Rear, Front) 2003-2010 Dodge Ram 2500 (Front, Rear) 2003-2010 Dodge Ram 3500 (Front, Rear) 2005-2008 Chevrolet C4500 Kodiak C4C042 C4C044 C4E042 C4E044 C4U042 C4V042 (Front, Rear) 2005-2008 Chevrolet C5500 Kodiak C5C042 C5C044 C5E042 C5E044 C5U042 C5V042 (Rear, Front) 2005-2008 Chevrolet C6500 Kodiak C6C042 C6E042 C6V042 (Rear, Front) 2005-2008 Chevrolet C7500 Kodiak C7C042 C7E042 C7V042 C7H042 (Front, Rear) 2005-2008 GMC C4500 Topkick C4C042 C4C044 C4E042 C4E044 C4U042 C4V042 (Rear, Front) 2005-2008 GMC C5500 Topkick C5C042 C5C044 C5E042 C5E044 C5U042 C5V042 (Rear, Front) 2005-2008 GMC C6500 Topkick C6C042 C6E042 C6V042 (Rear, Front) 2005-2008 GMC C7500 Topkick C7C042 C7E042 C7V042 C7H042 (Rear, Front) 2003-2005 Ford Excursion Eddie Bauer Limited Xlt Xls (Rear, Front) 1999-2014 Ford F-250 Super Duty Lariat Xl Xlt Harley-Davidson Edition King Ranch FX4 Cabela's (Front, Rear) 1999-2014 Ford F-350 Super Duty Lariat Xl Xlt King Ranch Harley-Davidson Edition FX4 Cabela's Platinum (Rear, Front) 1999-2003 Ford F-450 Super Duty Lariat Xl Xlt (Rear, Front) 1999-2003 Ford F-550 Super Duty Lariat Xl Xlt (Front, Rear) Applications