Description Key Features Key Highlights New patented design features Ram-Air scoops for fastest cooling Provides cold high velocity air, overcoming “dead air zone” behind differential Scoops force air up and into massive heat radiation fins Engineered to break-away if snagged on an obstacle Banks cools 5X better than flat-back covers in on-road towing tests over the same road, same weather, operator and vehicle Cools 118% better than flat-backs in 200hp 60mph sustained tests Dry-mount high-pressure silicone O-ring seal. No messy RTV clean! Internal fins transfer heat through the cover into the external fins Clears spare tire heat shield, Panhard bars and other components Does not sacrifice any ground clearance Limited Lifetime Warranty Fluid Dynamics Axle tube lubricant guides directs lube to bearings w/o overfilling Cover mates flush with differential housing for smooth fluid flow Ring gear raceway controls fluid flow to the pinion and bearings Low fluid aeration means longer fluid life Technical Specs Weight: 13.72 lbs External heat radiation fin count: 25 Internal heat absorption fin count: 22 Dimensions: 14.09 in X 13.74 in X 4.16 in External heat radiation fin surface area: 677.64 in2 Internal heat absorption fin surface area: 117.26 in2 External heat radiation total surface area: 897.94 in2 Internal heat absorption total surface area: 229.70 in2 Fasteners: 14 x stainless steel M8-1.25 flange hex bolts Material: A380 aluminum diecast with CNC machined surfaces Internal Volume: About 4.4 Qts (Check OEM Owners Manual) Oil service Magnetic drain plug Magnetic fill port plug 20° fill port for easy access No need to remove cover to change fluid 1/2 in sight glass with contrast screen (visual aid) and Viton seal Banks recommends Amsoil 75W-90 Severe Gear Synthetic Gear Lube Fill level depends on model year: (About 4.4Qts Fill To OEM Level) FITMENT CHECK KEY FEATURES Radiused Ports Radiused ports for smoother fluid flow. Directional Fluid Guides Axle-tube guides direct fluid to axle bearings without churn. O-Ring Seal Integrated No Mess Viton Seal. Dry-mount silicon high-pressure O-ring seal. No messy RTV required. Precision Fit Machined Surface CNC-machined surface ensures precise fit. Internal Heat Absorption Fins Internal absorber fins offer 120 square inches of surface area to transfer heat to external radiator fins without disrupting fluid flow. Simple Fluid Change No need to remove cover to change fluid. Lubricant Raceway Ring gear raceway provides path for fluid flow to pinion and ring gear-bearing sets. Ram-Air System w/Breakaway Scoops Ram-Air scoop break away point prevents damage if scoop is snagged. PURPOSE BUILT The Banks Engineering team’s goal was to perfect fluid flow and reject BTUs from the fluid as fast as the ring and pinion puts them in. If the fluid flow is impeded in any way, it results in resistance and aeration which reduce fuel economy and creates heat, thereby degrading the fluid and decreasing the lifespan of the gearset. OUTPERFORM THE COMPETITION, FOR LESS Thanks to its superior fluid and aerodynamics, the Ram-Air® Cover out-performs stock and flat-back high-capacity covers and does so with less lubricant. Increased distance between service intervals and less lubricant means you’ll save money while extending gear life. FLAT-BACK FAIL Extra capacity “Flat-Back” covers have worse fluid dynamics than stock. Effectively splattering oil at a wall reducing lubrication on key components and increasing wear-tear and heat. BANKS DOES IT RIGHT With the proper distance between the ring gear and raceway, oil is lifted up and around the differential. The internal fluid guides directs the flow exactly to where it’s needed. FLAT-BACKS DEAD AIR The competition has no way of directing airflow, their covers leave a deadzone so temperatures rise faster and fall slower, meaning your oil works harder and components wear faster, costing you fuel economy. RAM-AIR ENGINEERING The Banks differential cover is fundamentally different from its competition because it utilizes Ram-air scoops that direct air through channeled fins, cooling the differential and internal oil temperatures.
