Your diesel off-roader is only as strong as your driveline components. Nitro gear packages, now available at Summit Racing, are designed to put up with the heavy toil of the rough off-road. When you add bigger and heavier wheels and tires, a lift kit, or accessories like winches and off-road bumpers to your ride, the transmission starts to shift constantly in order to keep the engine in its powerband. That hurts performance and fuel economy, and it also wears out your driveline quicker. With a Nitro Gear & Axle Gear Package, you'll solve those issues by upgrading to the proper gear ratio. The packages include matched ring and pinion gear sets for the front and rear axles, along with installation kits with all the necessary bearings, seals, and gaskets. The Gear Packages are available for many popular GM, Ford, and Dodge/RAM trucks. For more information, call 800-230-3030 or click here.