Seller notes

Ram-Air® Differential Cover KitSatin Black/Machined, w/Hardwarefor 2001-2019 Chevy/GMC 2500/3500 6.6L Duramax Patented design cools 5X better than flat-backs Banks Ram-Air differential cover extends lubrication life and retains fuel economy. Thanks to its superior fluid and aerodynamics, the Ram-Air Cover out-performs stock and flat-back high-capacity covers and does so with less lubricant. Increased distance between service intervals and less lubricant means you'll save money while extending g...

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