When it comes to engineering for power, performance, protection and value, aFe Power is the only choice. Pro Series Differential Cover Black w/ Machined Fins & Gear Oil (AAM 9.5/9.76) GM Silverado/Sierra 1500 14-19 L4-2.7L/V6-4.3L/V8-5.3L/6.2L GM Silverado/Sierra 1500 14-19 L4-2.7L/V6-4.3L/V8-5.3L/6.2L (AAM 9.5/9.76 - 12 Bolt Rear Axle)
