Does Not Fit Any Super Duty With Rear Sway Bar
Does Not Fit Any F-350 DRW
Does Not Fit 2023-25 High-Output
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
Banks Ram-Air® differential cover extends lubrication life, retains fuel economy, and rejects heat faster than any other cover on the market.
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.
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.
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.
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.
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
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.
The Banks Ram-Air cover features deep external fins with 160% more exterior heat radiation surface area than Mag-Hytec, or over 5x that of the factory cover.
The 22 internal heat absorption fins add an extra 222.2in2 to pull heat, or almost 70% more area than stock.
What began with a simple question, resulted in millions of video views, innovation, and another patented Banks product.
All other manufacturers simply copied previous designs. They all run on the belief that "more oil means cooler temps."
The Banks Engineering Team uncovered two underlying problems with aftermarket covers; poor air flow and flawed fluid dynamics. The Banks Ram-Air® differential cover solves both issues.
Tests were performed on a stretch of California’s infamous Grapevine (Interstate 5) on the same truck, with the same driver and the same load, at the same time of day and same temperature
After testing covers with flat-backs and those with larger fluid capacities, it was apparent that these covers do not cool as well as advertised, suffer from poor fluid dynamics, and they all make no use of airflow to cool actively
We searched for information on every popular brand of gear oil. The only company with in-depth knowledge and the willingness to share it was AMSOIL.
They are every bit as thorough in their development as we are. The more info we discovered, the more we liked how AMSOIL designs and test their products.
If you want to see for yourself, here is a link to their 75w90 test results.
We decided to stick with the manufacturer's suggested viscosity and use AMSOIL Severe Gear Synthetic Extreme Pressure Gear Lube.
Fill level remains at the recommended levels as factory.
Check owners manual for
recommended fill
level for your specific vehicle.
Our patented Ram-Air scoops are designed to increase airflow over the rear differential without sacrificing ground clearance. In fact, our differential cover retains the same low point as factory and competitors.
U.S. Patent 10,443,705 B1
In Black Ops or Satin/Black Machined
1985-2026 Ford Sterling Axle 12-bolt with 10.25/10.5 ring gear
Patented design cools 5X better than Flat-Backs
Does Not Fit Any Super Duty With Rear Sway Bar
Does Not Fit Any F-350 DRW
Does Not Fit 2023-25 High-Output
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
Banks Ram-Air® differential cover extends lubrication life, retains fuel economy, and rejects heat faster than any other cover on the market.
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.
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.
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.
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.
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
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.
The Banks Ram-Air cover features deep external fins with 160% more exterior heat radiation surface area than Mag-Hytec, or over 5x that of the factory cover.
The 22 internal heat absorption fins add an extra 222.2in2 to pull heat, or almost 70% more area than stock.
What began with a simple question, resulted in millions of video views, innovation, and another patented Banks product.
All other manufacturers simply copied previous designs. They all run on the belief that "more oil means cooler temps."
The Banks Engineering Team uncovered two underlying problems with aftermarket covers; poor air flow and flawed fluid dynamics. The Banks Ram-Air® differential cover solves both issues.
Tests were performed on a stretch of California’s infamous Grapevine (Interstate 5) on the same truck, with the same driver and the same load, at the same time of day and same temperature
After testing covers with flat-backs and those with larger fluid capacities, it was apparent that these covers do not cool as well as advertised, suffer from poor fluid dynamics, and they all make no use of airflow to cool actively
We searched for information on every popular brand of gear oil. The only company with in-depth knowledge and the willingness to share it was AMSOIL.
They are every bit as thorough in their development as we are. The more info we discovered, the more we liked how AMSOIL designs and test their products.
If you want to see for yourself, here is a link to their 75w90 test results.
We decided to stick with the manufacturer's suggested viscosity and use AMSOIL Severe Gear Synthetic Extreme Pressure Gear Lube.
Fill level remains at the recommended levels as factory.
Check owners manual for
recommended fill
level for your specific vehicle.
Our patented Ram-Air scoops are designed to increase airflow over the rear differential without sacrificing ground clearance. In fact, our differential cover retains the same low point as factory and competitors.
U.S. Patent 10,443,705 B1
Overall rating: 4.980237 / 5 from 253 reviews.
The Ram-Air® Differential Cover Kit is highly regarded for its excellent quality, superior design, and ease of installation. Customers praise its well-made construction, perfect fit, and top-notch finish, making it a popular choice for upgrading standard parts.
Review topics: [looks, quality, fit, shipping, design, finish, difference, price, instructions, packaging, craftsmanship, issues, fitment, performance, staff, cover, video, service, customer service, install, detail, upgrade, plug, banks, change, sight glass, truck, works, hardware, leaks].
"Fit and finish was just like you would expect coming from Gale Banks! Instructions were clear and concise. Looks great under the truck, installed it before pulling my camper I was not able to get temp readings but just the piece of mind knowing the rear end is staying cool and protected with the amsoil that I opted to use with the cover."
"About this to cool my rear end off on my truck I have a Ford F-350 6. 7 diesel and a retired and I want to start traveling I want to kind of bulletproof my truck so I added an extended engine oil pan and transmission and two hopefully I won't have any problems my fifth wheel weighs 5 and 1/2 ton possibly six done going down the highway"
"Install was no different than reinstalling the OEM but the oring seal and all the other features made it a worthwhile investment! Can’t wait for the transmission pan to be released!"
"I had it put on recently and the shop owner liked it so much he was going to buy one for his F350. The diff was very high quality made and I am happy about the purchase"
"If I had installed this on my 2016 F-250, my differential would not have failed 300 miles from home while towing my 5th wheel. The unit over heated and the bolts on the ring gear failed. It cost $6,600 to get it fixed! (Plus $5,800 to get everything towed home!) Ouch!"
"This cover is nice, the finns a big and scoop the passing air, sight glass is really nice. Over all this thing looks awesome and funtions well."
"It fit absolutely perfectly and im extremely happy with the product everything is exactly as they said it was"
"Looks good on that Super Duty booty. Ready the instructions on the install o-ring that almost got me lol. Buy it."
"Every diff cover should have an in oring seal"
"👍👍👍"
Your cart is currently empty.
To proceed, please confirm if you would like to add another one into your cart.
To proceed, please confirm if you would like to add another one into your cart.
To proceed, please confirm if you would like to add this item into your cart without checking for compatibility. Otherwise, you can search for your vehicle configuration to see if it is compatible with this part.
