Banks Power Natural Aluminum Ram-Air Differential Cover Kit w/Hardware Chevrolet | GMC | Ram with AAM 11.5 Inch or 11.8 Inch 14 Bolt Rear Axle 2001-2019

Banks Ram-Air Differential Cover is unlike any other. After testing covers with flat-backs and those with larger fluid capacities, it was apparent that those covers do not cool as well as advertised and suffer from poor fluid dynamics. As a result, flat-backs reduce fuel economy. Banks Ram-Air differential cover extends lubrication life and retains fuel economy!

When it comes to product development, we only make products that increase performance and beat the competition. So when we tested the popular Diff Covers on the market, we were shocked to find out that they actually hurt performance. This lead to the development of something so New and Incredible that our performance design has a United States Patent.

Look, when we set out to build a product for your vehicle, we only engineer the best. What else would you expect from a company with a winning legacy that spans decades. We are here to win, and we just did (AGAIN) in a huge way.

Features and Benefits:

• Banks cools 5X better than flat-back covers in on-road towing tests over the same road, same weather, operator and vehicle
• Banks cools 118 percent better than flat-back covers in controlled 200hp 60mph sustained dyno tests
• New patented design features Ram-Air scoops
• Forces air up and into massive heat radiation fins providing the fastest cooling on the market
• Provides cold high velocity air, overcoming dead air zone behind differential
• Engineered to break-away if snagged on an obstacle
• Internal heat absorption fins transfer heat through the cover to the external fins
• Dry-mount high-pressure silicone O-ring seal. No messy RTV clean up when servicing differential
• Clears spare tire heat shield, Panhard bars and other suspension components
• Lowest point is the rear differential housing, not the Banks Ram-Air cover
• Limited Lifetime Warranty

• Cover mates perfectly with differential housing for unobstructed fluid flow
• Ring gear controls the fluid flow path to the pinion and bearing sets
• Axle tube lubricant guides direct fluid to axle bearings without over-filling
• Low fluid aeration means longer fluid life
• Oil service:
• No need to remove cover to change fluid
• Magnetic drain plug
• Magnetic fill port plug
• 20 degree angled fill port for easy access
• 1/2 inch sight glass with contrast screen (visual aid) and Viton seal
• Banks recommends Amsoil 75W-90 Severe Gear Synthetic Gear Lube Easy Pack

• Finish: Bare
• Material: A380 aluminum diecast with CNC machined surfaces
• Weight: 11.7 lbs
• Dimensions: 14.2 inch X 13.3 inch X 3.8 inch
• Internal volume: 4 quarts matching factory fill level
• External heat radiation fin count: 24
• Internal heat absorption fin count: 26
• External heat radiation fin surface area: 533.782 inches
• Internal heat absorption fin surface area: 119.882 inches
• External heat radiation total surface area: 808.81 in
• Internal heat absorption total surface area: 215.78 in
• Fasteners: Chrome-plated 12-point flanged M8-1.25x32mm bolts