aFe Power's new rear differential cover brings performance engineering to the protection of your axle's differential. This differential cover is constructed out of durable A356-T6 cast aluminum with reinforcing ribs for maximum strength. Mounting hardware is included for a hassle-free installation. A calibration plug set to the factory level prevents overfilling of the differential. A magnetic drain plug and a deep reach magnetic fill plug are provided for maximum protection. This cover has a raw finish with machined fins for a distinctive look. 5 Quart Gear Oil Capacity: This cover has about a 5 quart gear oil capacity at the factory fill level, factory cover holds about 4 quarts. Built-in Cooling Fins: Built-in internal and external cooling fins increase surface area to maximize cooling of the differential oil. Magnetic Drain/Fill Plug: This system incorporates a magnetic drain and deep reach fill plug that captures loose particles for maximum rear-end protection. Oil Level calibration plug: A 1/8" NPT calibration plug is set to the factory fluid level which eliminates accidental overfilling.. Street Series Rear Differential Cover Raw w/ Machined Fins Ford Diesel Trucks 17-23 V8-6.7L (td) (Dana M300-14). aFe Power Rear Diff Cover Raw Finish 2017 Ford F-350/F-450 V8 6.7L (td) Dana M300-14 (Dually). Street Series Rear Differential Cover Raw w/ Machined Fins. Magnetic Drain and Fill Plugs Capture Loose Particles. Reinforcing Ribs w/ Raw Finish and Machined Fins. Constructed of Durable A356-T6 Cast Aluminum. Calibration Plug Set to Factory Fluid Level. Fits Ford Dana M300-14 Bolt Axles. Street Series Differential Cover. Differential Cover

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