---tab Description--- Differential Cover For AAM 11.5"/11.8″ 14 Bolts Rear Axle SPELAB Function: Protects the differential, seals the differential, stores differential fluid. Fitment (AAM 11.5"/11.8" 14 Bolts) : Chevrolet / GM2001-2019 Silverado, Sierra 2500/3500(&HD)2001-2019 Light Duty P/U – 25/35 Series2001-2019 Full Size Utility 200/2500, 300/35002001-2019 Suburban, Yukon XL, Escalade ESV Dodge / RAM2003-2018 RAM 2500/3500 AAM 11.8"：2014-2018 RAM 3500 Rear – 6.7L Diesel DRW Note: The year and model may not guarantee compatibility. Please confirm whether the axle is AAM 11.5″/11.8″ 14 Bolts. The AAM 11.5" and 11.8" differential covers are interchangeable. Innovative points: 1. The external heat sink design increases the contact area between the differential cover and the surrounding air, enhancing heat dissipation performance.2. The internal diversion groove design aligns with the direction of liquid flow in the differential gear's rotation, ensuring maximum flow rate for better lubrication.3. The use of aluminum alloy material significantly improves cooling performance compared to the commonly used iron material. When comparing billet to cast products, billet items are often considered more durable and built for long-lasting performance.4. An external observation mirror with a floating ball is used to monitor the oil level. Traditional observation mirrors in the market may darken over time, reducing visibility. Therefore, the floating ball allows us to monitor the oil level even if the mirror darkens. 5. The outside with black wrinkle paint providing rust resistance. Specifications： ---tab Fitment--- Fitment (AAM 11.5"/11.8" 14 Bolts) : Chevrolet / GM2001-2019 Silverado, Sierra 2500/3500(&HD)2001-2019 Light Duty P/U – 25/35 Series2001-2019 Full Size Utility 200/2500, 300/35002001-2019 Suburban, Yukon XL, Escalade ESV Dodge / RAM2003-2018 RAM 6.4L ---tab FAQS--- Q1: What is a differential cover?A1: A differential cover is a protective cover for the differential housing, helping to shield the gears and differential fluid from debris and damage. Q2: Why should I upgrade my differential cover?A2: Upgrading to a high-performance differential cover can improve cooling, increase oil capacity, and enhance durability, leading to better overall performance and longevity of the differential. Q3: How does a finned differential cover improve cooling?A3: The fins increase the surface area, which helps dissipate heat more efficiently, reducing the operating temperature of the differential. Q4: Is a billet aluminum differential cover better than a cast aluminum one?A4: Yes, billet aluminum covers are typically stronger and more durable than cast aluminum covers due to their superior material properties and manufacturing process. Q5: How do I know if a differential cover will fit my vehicle?A5: Check the product specifications and fitment guide provided by the manufacturer to ensure compatibility with your vehicle's make, model, and year....