Ram-Air Differential Cover Kit Satin Black/Machined w/Hardware 01-19 Chevy/GMC 03-18 Ram with AAM 11.5 Inch or 11.8 Inch 14 Bolt Rear Axle Banks Power

The All-New Patented Banks Ram-Air Differential Cover WIPES OUT THE COMPETITION!

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.

Emissions Compliant: E.O. Not Required

US Patent 10,443,705

Purpose Built:
The Banks Engineering team's goal was to perfect fluid flow and reject BTUs from the fluid as fast 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.

Almost all aftermarket covers have fins for cooling. Unfortunately, those fins are almost useless because there's little or no airflow immediately behind the differential. Nearly all aftermarket covers impede fluid flow. Why does this matter? Aim a fire hose at a brick wall. It turns out liquid doesn’t like 90 degreee angles or obstructions.

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

Fluid Dynamics:

• Cover mates perfectly with differential housing for unobstructed fluid flow
• Ring gear raceway 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 with Viton O-ring seal
• Magnetic fill port plug with Viton O-ring seal
• 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

Technical Specs:

• Finish: Satin black textured powder coat or as-cast aluminum
• 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 in2
• Internal heat absorption total surface area: 215.78 in2
• Fasteners: 304 Stainless Steel hex flanged M8-1.25x32mm bolts

Fitment Guide for Clearance

Download this Fitment Guide to help make sure you have the proper clearance. When using this guide for fitment, make sure that either (a) your truck's full weight is on the wheels, or (b) you lifted the truck by the diff. When the truck is lifted off the ground, your swaybar (if you have one) moves and may cause a false fitment reading.
Fitment Guide for Banks Diff Cover, GM/Ram 11.5/11.8" 14-bolt