Heavy duty truck differential parts send engine power to your truck’s wheels. This power transfer allows your wheels to turn at varying speeds.In addition to exclusively offering Transaxle remanufactured transmissions and differentials, FleetPride also carries a variety of reliable differential parts from the most recognized, quality-built brands, such as Spicer, Timken, and more. Our assortment includes shift differentials, pinion bearings, power differential races, axle differential bearing and seal kits, rear axle differential seals, gear drives, rubber differential cover plugs, and more. Browse our extensive inventory to find the part for your heavy duty needs.