Double check your rear diff factory fluid level.

[Teke]

the problem i have with the vid is that he put a piece of flat lexan on to the cover and didn't account for the internal ribs or, and i am just guessing here but from watching it, it also looks like he didn't account for the actual depth of the flatback cover with the ribs.

Oh absolutely! Its typical advertising from a competitor.

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[Roll Sound]

the problem i have with the vid is that he put a piece of flat lexan on to the cover and didn't account for the internal ribs or, and i am just guessing here but from watching it, it also looks like he didn't account for the actual depth of the flatback cover with the ribs.

Also, lets see his with a clear back.

 

[RHeinz]

This fully explains why I was able to get 317,000 miles out of my 2000 Explorer and 327,000 miles out of my Expedition without any differential problems with the stock covers….. In spite of what this dink says, the gear oil does flow around the ring gear quite well, in spite of the cover geometry. Sudo experts ….. Climate change anyone?????

 

[Raptor911]

please show me the drain on it as I don't see one

Does the Raptor finned aluminum cover fit the standard Bronco?
If it does fit is there a drain on it.

 

[Deano Bronc]

Those are beautiful diff covers, but 750! Yikes...

This price seems reasonable.
https://ticklemybronco.com/products/ab-arb-fb-0750012b-t14

 

[Rick Astley]

please show me the drain on it as I don't see one

Why are you looking on the rear diff cover for the drain plug?

Typically the drain plug on Dana 220's is fore of the axle, below the drive shaft and on one side (generally the drivers side)

Via the M220 rear diff on the Ranger:

https://www.therangerstation.com/ra...ana-m220-rear-axle-fluid-change-instructions/

 

[BlueBoy]

Why are you looking on the rear diff cover for the drain plug?

Typically the drain plug on Dana 220's is fore of the axle, below the drive shaft and on one side (generally the drivers side)

Via the M220 rear diff on the Ranger:

https://www.therangerstation.com/ra...ana-m220-rear-axle-fluid-change-instructions/

That simple change procedure is handy, do you happen to have the P/N available for the drain and fill plugs which the instructions say to throw away?

 

[Rick Astley]

That simple change procedure is handy, do you happen to have the P/N available for the drain and fill plugs which the instructions say to throw away?

yup. Just google Dana M220 drain plug part number and you got yourself a dozen options for vendors.

Personally I just reanneal the plug and you'll get 2-3 uses out of it as long as you're using a rosebud or proper torch.

 

[Ramble_Offroad]

How about this cover for a BadSquatch?

https://www.stage3motorsports.com/0750012b-21-22-bronco-arb-black-differential-cover.html

edit / this may be for their air lockers.

 

[RHeinz]

1940’s Dana technology….. A drain in the housing!!!!!

A 1/2” square socket drain plug so the rocks wouldn’t render it un-removable. And as you can see, it’s been over a LOT of rocks.

Check out the gear ratio 43:8 …. 5.375….. A good ratio for rock crawling and winning a ground war (farming?) .

 

[HRBowhunter]

For all of you thinking of installing a different rear diff cover watch this first please.

Banks with the crazy eyes!

 

[TheDropZone]

If you think the dealership is checking the diff fluid during the PDI your nuts

 

[Phil]

Long story short the factory fill on my rear differential was 10oz low. Not sure if it was an oversight on the line, QA/QC or dealer PDI. Maybe all three.

Long story long. A couple of us went out to Hackett Gulch (CO) last Sunday with a storm rolling in. It's a difficult trail on a good day and the snow wasn't helping. The lockers on my stock BL were getting a workout and 3/4 into the trail I received an alert to check my locking differential. (This was before getting to the river for anyone familiar). I gave the lockers a rest, the error went away after a few minutes and I completed the trail without issue. Love my Bronco.

As a follow up, today I checked my rear diff fluid. To be honest I was more concerned about the water crossing than the warning light but I'm glad I did. When I removed the fill plug I wasn't met with any dripping gear oil. I stuck my finger in and was eventually able to retrieve some oil. Not milky, so that was good, but definitely low.

Buying a quart of gear oil wasn't as easy as I expected. Bronco Nation provides two spec fluids and capacities for the differentials but they don't reference front or rear. 1) 80W-90 Premium REAR Axle Lubricant and 2) 75W-85 Premium Synthetic Hypoid Gear Lube. Before consulting my owners manual I had assumed the rear axle lubricant went in the rear. Nope, I think it's counterintuitive and it's the hypoid that goes in the rear and the rear axle lube that goes up front. An unlucky draw at the dealership parts department didn't provide any answers(75W-140?!?) so I'm following the owners manual. Let me know if anyone knows better.

probably a good idea to check all the fluids right after delivery

 

[Phil]

Ford factory is incompetent,
Broncos are falling apart like it’s made out of paper Mashay

papier-mâché

 

[RainbowStix]

I will prob swap out my rear diff with a cover that allows you to drain and refill without removing it.

RPG has a nice one BUT lots of $$ >> https://www.rpgoffroad.com/product/bronco-rear-differential-cover/

Nextventure Motorsports has a cool one https://nextventuremotorsports.com/...o-rear-diff-cover-m220?variant=42344766144748

I’ve never heard of RPG before the Bronco but can’t say I like them as they seem to be charging the Bronco tax for inferior parts with minimal testing

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