aFe Pro Series Rear Differential Cover Black w/ Machined Fins (Dana M220) (46-71000B) 1777 GrimmSpeed has always been on

GrimmSpeed has always been on the forefront of innovation when it comes to well-engineered functional parts for your vehicle

CNC Machined Breather adapters

Innovative Hybrid Technology: Integrates performance with reduced environmental impact

They help reduce the amount of high pressure area on the side of the car to go under the car from the sides

With its carbon fiber embossed pattern and non-slip rubber surface layer

aFe Pro Series Rear Differential Cover Black w/ Machined Fins (Dana M220) (46-71000B) 1777 GrimmSpeed has always been onPro Series Rear Differential Cover (46 71000B) by aFe. Upgrade your transmission with this finned aluminum pan and increase fluid capacity, improve fluid cooling and ease future maintenance jobs. It includes a magnetic drain plug, temperature sensor port, and internal and external cooling fins. With its reinforced ribs and wrinkle black powder coated finish, it's both strong and stylish. Replace your stock, stamped steel transmission pan with this