Front and Rear Diff?

[Shooter23]

How often should the front and rear diff be serviced?

[Shooter23]

Anyone know about this?

[MountainMan]

I serviced the front and rear differentials on my 2006 6.0 at around 25,000 replacing the gear oil with Schaeffer's fully synthetic. My mechanic said the factory gear oil had a shiny look to it meaning it was full of metal break in material. With towing I plan on servicing about every 30,000 miles along with a transmission flush. This might be a little over kill but is cheap maintainence relative to the cost of a new truck these days.

[Shooter23]

Thank you for your help!

[Fireman40]

With light use I would say you would be ok changing every 50000 but with heavy hauling do 30000

[Shooter23]

So I thought my rear diff was leaking. I decided to service front and rear diff. Went to my buddy's house(he has a lift). Come to find out it wasn't my diff leaking, My pinion seal was bad. So fixed that and still serviced front and rear!

[03_Turbo7.3]

Good job!

Also i checked the intervals ford says 60K miles or 96Kms.. a long time if you ask me, also if you do alot of towing or backing boats into the water etc you may want to change it more often

[Shooter23]

Thanks for your help!

[DJM]

I just did the rear oil in mine today the original oil in there looked good my truck has 164k on it I was told it was lifetime oil in the rear diff but I don't trust that. I need to change the oil in my transfer case tomorrow too cause that is the original oil also .