Aftermarket diff covers...do they work?
https://www.bankspower.com/i-2892-di...rear-axle.html
Looks like a quality well designed product to me. Would I purchase one? Probably not, I've never installed an aftermarket differential cover and don't plan to start now. If I was going to buy one it would the banks cover.
All I know is that this guy put more engineering into a rear diff cover for cooling purposes than anyone ever has. But yet he sensibly respected the axle engineers designed axle cover AND the original amount of gear fluid that came from the axle manufacturers. Either Gale is smarter than any of the other aftermarket diff cover guys or just has WAY more common sense and insight.
To deny this and talk smack about the guy is just being emotional because you either don't like him or agree with him. We have a lot of this these days.
I probably won't get one either but to be honest, I was looking at aftermarket diff covers at one point. I'm glad I never bought one of those "flat face" covers. I was also looking at the BD one also. Imagine paying that money for a cover that actually does a worse job internally than the stocker. Enough said...
All I know is that this guy put more engineering into a rear diff cover for cooling purposes than anyone ever has. But yet he sensibly respected the axle engineers designed axle cover AND the original amount of gear fluid that came from the axle manufacturers. Either Gale is smarter than any of the other aftermarket diff cover guys or just has WAY more common sense and insight.
To deny this and talk smack about the guy is just being emotional because you either don't like him or agree with him. We have a lot of this these days.
I probably won't get one either but to be honest, I was looking at aftermarket diff covers at one point. I'm glad I never bought one of those "flat face" covers. I was also looking at the BD one also. Imagine paying that money for a cover that actually does a worse job internally than the stocker. Enough said...
Looked on the website and didnt find one that fits Fords
That being said...….Fords don't have issues with differentials. There really isn't a need for additional cooling, or strength in that area. I do quite a bit of Four-wheeling, and towing. It just simply isn't a part that fails very commonly at all. The Banks design most likely does help with circulation of the fluids, but it seems he hasn't even manufactured his new toy for any newer Fords yet. Why make the huge fuss over defending Banks, when they haven't even made one for us yet??? I really like his approach to it all, having the transparent cover in the test to truly show what the fluids are doing, but Ford just does not have an issue there. Unless you are merely speculating about a possible future product they plan on making.....what are we even discussing here??? LOL
That being said...….Fords don't have issues with differentials. There really isn't a need for additional cooling, or strength in that area. I do quite a bit of Four-wheeling, and towing. It just simply isn't a part that fails very commonly at all. The Banks design most likely does help with circulation of the fluids, but it seems he hasn't even manufactured his new toy for any newer Fords yet. Why make the huge fuss over defending Banks, when they haven't even made one for us yet??? I really like his approach to it all, having the transparent cover in the test to truly show what the fluids are doing, but Ford just does not have an issue there. Unless you are merely speculating about a possible future product they plan on making.....what are we even discussing here??? LOL
You are basing this off of YOUR experience, not anyone else's experience, with Banks. Just because you had a negative experience with Banks doesn't mean everyone else WILL. Believe me, we all KNOW how you feel about Banks.
Ford, nor anyone else who runs someone else's designed axles, has any wide spread problem with axles. Is it really a surprise to anyone who knows better that Banks designed the cover for his brand of choice, GM, that runs AAM axles?? The only reason it works for Rams is because they run AAMs as well. Just like the Derringer tuner, he designed one for the GMs first but I can't comment on whether the GM or RAM came out at the same time or not. He's a GM guy so I don't see this as any surprise at all. Just saying...
If you watched the last video I posted, they were going to come out with their own brand of the flat top cover. That's when his insight took over and he said, "wait a minute. We don't know what happens in these aftermarket covers. Do they hurt or help? Why do they have more oil in them than the OEM covers?" I'm paraphrasing here but you get the idea. Once they made the clear plastic covers in the OEM design and the Mag Hytec cover to see what was actually going on, he realized he could do it better than just doing what everyone else does with a flat back cover. I think he basically felt that if they were going to get into the diff cover business, he was going to over engineer the hell out of it to make it more functional than not only the OEM cover, but the flat top covers as well. Once he saw that the flat top covers were doing something that they were not supposed to, that's throwing oil back at the cover rather than having the ring carry it over the top AND in the process aerate the snot out of it, he knew he could build a better cover than anyone else out there. And that's exactly what he did.
When Ford came out with their version of an finned aluminum cover, they had to see some sort of function in it, correct?
Last edited by Overkill2; Nov 2, 2019 at 10:28 AM. Reason: correct post
Ford Trucks for Ford Truck Enthusiasts
Re-inventing the wheel, when it was perfectly round already. Okay
*Re-inventing the wheel, when it was perfectly round already. Okay

Apparently those Derringers are junk as well because people keep buying them.
*You hit the nail on the head there because that's exactly what he did to the differential cover. Not only does it hold in the fluid and guide the oil up and over the ring gear like the OEM cover, but it cools off the fluid more than not only the OEM cover but also those aftermarket covers. Thanks Captain Obvious.

Opinions are like @$$ wholes... every body got one...
Last edited by Overkill2; Nov 2, 2019 at 11:15 AM. Reason: correct post

Just because something is selling, doesn't mean a dang thing on how good it is. Look at Hypertec, Bullydog, Superchips and Edge. All four of those were absolute JUNK tuners/chips for the 7.3, yet they sold MILLIONS!
You are the new diesel owner, you have stated that many times. But YOUR good customer service with Banks means, they are the best EVAH!

Just because something is selling, doesn't mean a dang thing on how good it is. Look at Hypertec, Bullydog, Superchips and Edge. All four of those were absolute JUNK tuners/chips for the 7.3, yet they sold MILLIONS!
You are the new diesel owner, you have stated that many times. But YOUR good customer service with Banks means, they are the best EVAH!
Now you are putting words in my mouth and making a huge assumption. I didn't know that talking differentials is strictly for diesel "experts" such as yourself. Yet I can see your point. You don't agree with an over engineered diff cover when your stock diff covers have been working for you and others in all trucks over the years, correct? That's okay. I understand. What I don't get is you having to feel the need the need to bad mouth something or a company just because you don't like them, have had a bad experience or you heard something about them. But you have the floor Sir. Have at it.
I had a back and forth with a member here about the concept of the FilterMags that I have been using on my vehicles now for 20 years. You remind me of the guy. I was called a paid shill in that thread. My point for bringing this up is that I present information here for people with open minds and for people who are open to this info. For the ones who aren't, fine too. Take this or leave it. I'm not endorsing any use of any product nor do I imply that it's necessary to use. All of I do here on this forum and others before, is present what I feel will be of interest to the group or what I do that others MAY be interested in. I understand and don't lose sleep that there will be people like you who feel the need to be negative, not agree with it, offer their "expert" POV, etc.
I always use "I'm not an expert" because I'm not but it also doesn't mean I don't know anything or can't have my own opinion like you have yours. Yea, I'm new to diesel but I'm also wise enough to see that there are differing opinions here which is okay.
One more thing about reinventing the wheel. If the people before us didn't do it, this is how it would look which is not good.










