Ram-air Differential Cover, for 2001-2019 Chevy/gmc/dodge/ram, with AAM 11.5 and 11.8-inch 14 Bolt Rear Axle

Banks Ram-air Differential Cover is unlike any other. Patented design cools 5 times better that flat-backs, increases MPG, and extends lubrication life. Testing flat-backs and those with larger fluid capacitates proved that those covers do not cool as advertised and suffer poor fluid dynamics, resulting in reduced fuel economy. Banks Power 800.438.7693 Bankspower.com