A Fast Filtered diff cover have twice the real surface area of any other diff cover on the market. It is also the only diff cover that filters the oil as you drive.

FOR 2001-2019 CHEVY/GMC, 2003-2022 RAM, WITH AAM 11.5" OR 11.8" 14 BOLT REAR AXLE

FAST FILTERED AAM 11.4 14 bolt