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 flatbacks 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