2020-2022 GM 6.6L Duramax 11.5 Inch /12 Inch -14 Heavy-Duty Cast Aluminum Rear Differential Cover Brushed BILSTEIN SHOCKS as well as improved engine

as well as improved engine efficiency

Designed to outperform a standard ball hitch

Liquid filled gauge for setting up back pressure regulation on butterfly style exhaust brakes to ensure proper operation and possible leaks in your exhaust system that would reduce braking efficiency

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We also have a step-by-step video available to help walk you through the repair

2020-2022 GM 6.6L Duramax 11.5 Inch /12 Inch -14 Heavy-Duty Cast Aluminum Rear Differential Cover Brushed BILSTEIN SHOCKS as well as improved engineSpecially engineered to minimize friction and maximize lubrication. Keep your GM rear differential running cool and clean with an upgraded cover from PPE. Made from high quality cast A356. 0 T6 aluminum for strength and optimum heat dissipation. Increased fluid capacity provides increased thermal stamina. This new cover is equipped with specially designed internal heat sinks and external cooling fins which increase the pan's surface area helping