Banks tests aftermarket differential covers

Gale Banks from Banks Power (who, you will realize, is the Mr. Rogers of the automotive industry, after you watch these videos) is doing a YouTube series which will test the effectiveness of aftermarket differential covers.

He has completed 2 out of 3 videos that sets the stage for his testing methods. He also created another video showing a transparent diff cover on an F150 and how the fluid flows around the ring and pinion with a stock cover.

I am excited to see the third video when it comes out (scheduled for mid-September so it should be soon) and see the results he comes up with. I'll try to post the 3rd video when it comes out, but in the meantime enjoy!

Part 1 (10 minutes)

Part 2 (20 minutes)

Transparent diff cover on an f150 (9 minutes)

@bigrig I saw this and am curious to see his findings. I have the MagHytrec diff cover on mine and look forward to see if it reallly does any good

I also have the Mag-Hyec cover and am interested in "Mr. Rogers" findings.

I'm hoping he can settle one of the arguments about larger aftermarket covers...runs cooler, or just take longer to reach temp...

He does make a valid point for the shape of the covers providing a fluid path up around the ring gear...

Best cover would be a stocker with a fat heat sink grafted onto it, and a drain plug added.

While I'm all for a good test I feel most people buy diff covers for aesthetics (myself included) and not for any functional purposes outside of the drain plug and fill convenience.

At the end of the test, the Ford Performance cover is going to be the only one that doesn't create problems. It is heavy cast iron and will conduct the fluid heat almost as good as aluminum. Some bling is nice and I will add some too if I like it, but make sure it isn't actually worse than OEM.

The B&M cover looks like it has an internal configuration very similar to the stock cover - interested in Banks' conclusions.