PPE Heavy-Duty Cast Aluminum Rear Differential Cover

The PPE Heavy-Duty Cast Aluminum Rear Differential Cover is a great upgrade for your GM Silverado/Sierra 2500HD/3500HD or Dodge Ram 2500/3500 With AAM 11.5" rear axle. Excessive heat can degrade the protective qualities of differential fluid, leading to accelerated wear of gears and bearings. In limited-slip differentials, constant high temperatures can break down clutch packs and friction modifiers, resulting in reduced efficiency and compromised traction control.

Cast from high-grade A356.0-T6 aluminum alloy, the PPE differential cover adds .63 quart of fluid capacity and features half-inch external cooling fins for long-lasting heat management and performance. Built-in windage scrapers inside the PPE cover ensure precise fluid distribution around the gears. By reducing excessive fluid churning, these scrapers lower heat buildup and minimize parasitic loss, promoting more efficient power transfer. Together with the vertical external fins, they form a strong cross-bracing structure that improves load distribution and enhances impact resistance. The fill plug is precisely positioned at the factory level. Both the fill and drain plugs feature a powerful, high-temperature-rated neodymium magnet that captures ferrous particles for added protection.

Ram Note: 

This product will only fit on 2013+ Ram diesel models with a rear leaf spring suspension. Due to clearance issues, this cover will not fit on rear coil sprung applications. 

This diff cover is not compatible with certain 06-12 Dodge Ram models that are equipped with the Anti-Spin Differential rear axle from factory due to the tone ring sensor. For trucks that do have the tone ring sensor, please see part number PPE138051000