Sponsored

Change Driveline Fluids Early!

skyhunter

Big Bend
Well-Known Member
Joined
Apr 24, 2024
Threads
11
Messages
157
Reaction score
136
Location
MA
Vehicle(s)
2024 2DR Bronco
Your Bronco Model
Big Bend
Sorry, I am a bit daft. I can't find the schedule for the front, rear and trans in the manual. Just the engine oil. I have a 2024 BB 2 door 2.3L with about 47,000 miles. What is required and when?
Sponsored

 

N8do

Badlands
Well-Known Member
First Name
Nate
Joined
Dec 2, 2025
Threads
3
Messages
249
Reaction score
295
Location
IN
Vehicle(s)
24 Badlands Sasq hardtop 2.7 /86 4X4 trim, 351W, 35s, 4.86 + lockers /02 Taco 4d
Your Bronco Model
Badlands
Clubs
 
Sorry, I am a bit daft. I can't find the schedule for the front, rear and trans in the manual. Just the engine oil. I have a 2024 BB 2 door 2.3L with about 47,000 miles. What is required and when?
I asked that question a few K ago and they (dealership) informed me it should be done every 30K. So, I did mine at 22K. Lol

If you are planning on doing frequent changes, might look into a rear diff cover and an aluminum transmission pan. I took care of all that at the same time. I might do another flush before winter just to make sure most of the break in residue is out. If I change fluid often in the trans, I expect the filter will go further. Lol My theory.
 

skyhunter

Big Bend
Well-Known Member
Joined
Apr 24, 2024
Threads
11
Messages
157
Reaction score
136
Location
MA
Vehicle(s)
2024 2DR Bronco
Your Bronco Model
Big Bend
I asked that question a few K ago and they (dealership) informed me it should be done every 30K. So, I did mine at 22K. Lol

If you are planning on doing frequent changes, might look into a rear diff cover and an aluminum transmission pan.
Wow, every 30K, OK. Thanks. My 47,000 was done in only 18 months. I have a plug on my diff cover.

So many different oil recommendations' in older posts. 75w-110 front, 140 rear. 75w-1140 both. etc. Mercon LV seems to be the consensus for the T-Case. What about levels?
 
Last edited:

Returntothefog

Heritage
Well-Known Member
Joined
Apr 30, 2025
Threads
30
Messages
290
Reaction score
391
Location
California
Vehicle(s)
2025 Bronco Heritage Edition
Your Bronco Model
Heritage
Sorry, I am a bit daft. I can't find the schedule for the front, rear and trans in the manual. Just the engine oil. I have a 2024 BB 2 door 2.3L with about 47,000 miles. What is required and when?
According to the user manual (pg508), front axle, rear axle, AT, MT, and transfer case fluids should be changed every 150k miles.

but most on here do earlier, @CarbonSteel is the golden standard and u can find earlier in this thread of his procedure.

I think around 30k for axles and 50k for trans and transfer case is fair (thats what I do), but even if you double that interval, it is still more frequent than Ford suggests.
 

skyhunter

Big Bend
Well-Known Member
Joined
Apr 24, 2024
Threads
11
Messages
157
Reaction score
136
Location
MA
Vehicle(s)
2024 2DR Bronco
Your Bronco Model
Big Bend
According to the user manual (pg508), front axle, rear axle, AT, MT, and transfer case fluids should be changed every 150k miles...
Thanks. I thought it was about that, but then you hear some dealerships are quoting earlier. I can see why if for a break in period. But I can also see why for financial reasons.

Trying to find the Motorcraft 75-85 locally but not having much luck. I can find the Red Line brand for $26 at the local O'Reilly. Used Redline Heavy Shock Proof in my Road Glide years ago and it was the only gear oil that stopped the Harley 'clunk' when shifting so they do make a good product.
 
Last edited:

Sponsored

Returntothefog

Heritage
Well-Known Member
Joined
Apr 30, 2025
Threads
30
Messages
290
Reaction score
391
Location
California
Vehicle(s)
2025 Bronco Heritage Edition
Your Bronco Model
Heritage
:(


Thanks. I thought it was about that, but then you hear some dealerships are quoting earlier. I can see why if for a break in period. But I can also see for financial reasons.

Trying to find the Motorcraft 75-85 locally but not having much luck.
yea when i did my axles i put 75W-140 for both, if i remember correctly, that is actually Dana (manufacturer for the front and rear axles)'s spec, it is a lot easier to find
 

skyhunter

Big Bend
Well-Known Member
Joined
Apr 24, 2024
Threads
11
Messages
157
Reaction score
136
Location
MA
Vehicle(s)
2024 2DR Bronco
Your Bronco Model
Big Bend
yea when i did my axles i put 75W-140 for both, if i remember correctly, that is actually Dana (manufacturer for the front and rear axles)'s spec, it is a lot easier to find

I have not mastered the preview option in posting so I edit a lot LOL
Sponsored

 
 





Top