Change Driveline Fluids Early!

[Dorf2point0]

So, i have all my oil's, the new ford performance diff cover. Put on my lift. Raise her up, and just start looking around underneath and.......look what i found… Fix or Repard Daily ( FORD)

Well. I guess i bring her off the lift and to the dealer.
At least i found this before i started putting on all the new goodies.

Fix or repair Daily ( FORD)

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[Karl_in_Chicago]

Fix or repair Daily ( FORD)

 

[Tor148]

Went and changed the transfer case and rear diff today. Transfer case was easy except i under estimated the velocity of the fluid exiting the drain hole, got me pretty good.
I have the NV diff skid, took it off seamed heavy,

Guess i didn't get all the dirt out last time!!
Both fluids looked good but there was definitely the metal paste in the rear diff.
Put the Ford Performace cover on. Went to put the NV diff skid back on and......Nope!!
Damn thing wont go on woth the upgraded diff cover
I would have to remove too much material from the skid to make it work with the cover, and the skid is much more important to me then the convenience of the drain plug
As you can tell, the skid gets used!!

So, anyone looking for a diff cover that was put in place for about 5 minutes!!! I have one for sale!

 

[adamruiz2001]

Went and changed the transfer case and rear diff today. Transfer case was easy except i under estimated the velocity of the fluid exiting the drain hole, got me pretty good.
I have the NV diff skid, took it off seamed heavy,

Guess i didn't get all the dirt out last time!!
Both fluids looked good but there was definitely the metal paste in the rear diff.
Put the Ford Performace cover on. Went to put the NV diff skid back on and......Nope!!
Damn thing wont go on woth the upgraded diff cover
I would have to remove too much material from the skid to make it work with the cover, and the skid is much more important to me then the convenience of the drain plug
As you can tell, the skid gets used!!

So, anyone looking for a diff cover that was put in place for about 5 minutes!!! I have one for sale!

How much?

 

[Beach_Bum]

How much?

@Tor148 Classified Post for the FP Rear Diff Cover

 

[BBQBennz]

Anyone clean out some of the residual fluid that is full of the metal once drained?
I would flood with brake cleaner but would not necessarily do this to any of these axles, MT's or Transfer case. ...unless there is some recommendation from Ford or the Mfgr's to do it or something similar.
Maybe just letting the new fluid mix with the residual is good enough.

 

[CarbonSteel]

Anyone clean out some of the residual fluid that is full of the metal once drained?
I would flood with brake cleaner but would not necessarily do this to any of these axles, MT's or Transfer case. ...unless there is some recommendation from Ford or the Mfgr's to do it or something similar.
Maybe just letting the new fluid mix with the residual is good enough.

Do not use any type of brake cleaner or chlorinated solvent inside the differential. It will attack the seals which could lead to a leak.

Use lint free paper towels, like Scott's, to wipe out the inside. You will remove the vast majority of the residual goop safely that way.

The residual you mentioned is why I did 2 changes in 5K miles. These axles produce wear metals for longer than previous generations and since it is unfiltered, changing the fluid is the only way to remove the metal.

 

[Tor148]

Do not use any type of brake cleaner or chlorinated solvent inside the differential. It will attack the seals which could lead to a leak.

Use lint free paper towels, like Scott's, to wipe out the inside. You will remove the vast majority of the residual goop safely that way.

The residual you mentioned is why I did 2 changes in 5K miles. These axles produce wear metals for longer than previous generations and since it is unfiltered, changing the fluid is the only way to remove the metal.

If you let it sit it will all drain down and you can keep cleaning out the bottom of the diff. I probably let mine sit for at least 30 min total and cleaned out the bottom 3 or 4 times. I will probably do this again in another 5k miles ( i am at 15k now) like @CarbonSteel recomends.
And probably keep that interville, because the portals will need to be done at that mileage as well. Might as well do it all at the same time!

 

[userdude]

Went and changed the transfer case and rear diff today. Transfer case was easy except i under estimated the velocity of the fluid exiting the drain hole, got me pretty good.
I have the NV diff skid, took it off seamed heavy,

Guess i didn't get all the dirt out last time!!
Both fluids looked good but there was definitely the metal paste in the rear diff.
Put the Ford Performace cover on. Went to put the NV diff skid back on and......Nope!!
Damn thing wont go on woth the upgraded diff cover
I would have to remove too much material from the skid to make it work with the cover, and the skid is much more important to me then the convenience of the drain plug
As you can tell, the skid gets used!!

So, anyone looking for a diff cover that was put in place for about 5 minutes!!! I have one for sale!

Wuuuutttt... I have the same diff cover and NV skid plate. I guess you're saying pick one? SMH WTF

 

[Cygnusx1]

Changed the front diff fluid yesterday. Will do transfer case and rear diff sometime this week. Badlands Sas 2.7 ~14,000 miles, and drained 16oz from the front. So, low factory fill definitely a thing.

 

[Tor148]

Just got the call from the dealer. Rear main seal is leaking. Need to order parts but they are giving it back and going to schedule in January when the get the parts and after the holidays. Hoping the thrust bearing is not shot and causing this. They said they will see when they tear it apart. Said it will be a two day job

 

[DefNotBuddyLee]

A nice option from amsoil is quart sized bags. Was just able to squeeze it in. Easiest diff fill I've ever done. Took longer to clean the rear diff mating surfaces than it did to fill all 3 combined.

Ahh yes...Capris Sun for the car.

@orion , did you find a Lube Locker gasket for the Bronco? I only saw the 10 bolt pattern for the Dana axle which is not what we have on the Bronco. Otherwise that would have been my go-to. I figure it will be available the next time I change diff/transfer case fluids.

@CarbonSteel , I was not prepared for the Ravenol bottles when doing the transfer case. A very interesting design.

 

[CarbonSteel]

Ahh yes...Capris Sun for the car.

@orion , did you find a Lube Locker gasket for the Bronco? I only saw the 10 bolt pattern for the Dana axle which is not what we have on the Bronco. Otherwise that would have been my go-to. I figure it will be available the next time I change diff/transfer case fluids.

@CarbonSteel , I was not prepared for the Ravenol bottles when doing the transfer case. A very interesting design.

Yeah...I am with you. The Flo Tool I use was bought especially for those bottles when I changed the transfer case fluid in my 2019 Wrangler. Their 1 gallon bottles are even worse.

PS...in case you were not aware, the OEM Ford rear axle gasket (which is the same for the Jeep Wrangler Rubicon axle) is reusable. I reused the one on my Wrangler at least 10x before I replaced it.

 

[orion]

Ahh yes...Capris Sun for the car.

@orion , did you find a Lube Locker gasket for the Bronco? I only saw the 10 bolt pattern for the Dana axle which is not what we have on the Bronco. Otherwise that would have been my go-to. I figure it will be available the next time I change diff/transfer case fluids.

@CarbonSteel , I was not prepared for the Ravenol bottles when doing the transfer case. A very interesting design.

Yeah...I am with you. The Flo Tool I use was bought especially for those bottles when I changed the transfer case fluid in my 2019 Wrangler. Their 1 gallon bottles are even worse.

PS...in case you were not aware, the OEM Ford rear axle gasket (which is the same for the Jeep Wrangler Rubicon axle) is reusable. I reused the one on my Wrangler at least 10x before I replaced it.

I just reused the OEM gasket. It's very similar to the Lube Locker.

 

[paxfish]

Thanks everyone for this thread and your contributions.

I used stock viscosities (the Bronco lives at 9000 ft = cooler).

At 25K, front diff fluid was a bit dark, transfer case a bit darker. Rear diff looked great.

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