Our differential upgrades are perfect for giving your Ram 2500/3500 added traction for both on and off-road applications. An aftermarket locking or limited slip differential for the Ram 2500/3500 will grant your truck impressing traction by locking your front or rear axles to keep your tires turning. Here at Alligator Performance, we offer a variety of differentials available that include both locking and limited slip designs so that you can find the aftermarket differential combination that works best for your aggressive 5.9L Cummins build. Pair your new differential upgrade with a new set of Wheels & Tires. Ram Cummins Fitments: 2004, 2005, 2006, 2007 Ram 5.9L Cummins.Submodel Fitments: Tradesman, Laramie, Laramie Longhorn, Big Horn, Limited, Lone Star, Power Wagon.Some exceptions apply, please see individual product pages for specific fitments.