"you don't just . just take it to a shop."
First off, the question was how to rebuild the differential not should i take it to a shop or do it myself, moron.
To the person asking. Do your research, buy a manual, buy borrow or beg for the correct tools, take your time, ask questions of people smarter than you and check your work twice. This answer applies to all how do i do this questions.
The front differential is an "open" differential. No limited slip components there.
The front differential uses 80w90.
It's an open front differential if it is stock. So is the rear differential
Unless you have a 4x4 or 6x6 unit, there is no front differential.
What is the fluid capacity front differential 2004
You must remove the transmission, the front differential is built right in.
The front differential uses 80W90 gear oil.
front
How do you rebuild a differential for a 1981 GMC pickup?
how do i rebuild king pins on front axle of 1974 amrican general postal van
On a 2004 Ford Expedition , 4x4 : The front differential has a tube ( hose ) coming off the top of the differential ( the biggest part of the case where the gears are )
No. The pinion seal would be at the differential input.