My Jeep is just passed the 25k mark so I figured I should check the gear oil finally!
I was at the dealer for an oil change recently and they bugged me again about changing the diff. fluids...for $323...I don't think so!
As others on here have said, it's super easy to do as long as you can turn a ratchet!!
I used 3 qts of Lucas HD 80W90. (I know I didn't need HD, but that's all they had in stock and I didn't know when I'd get a free afternoon to do this again)
I decided to go with dino based on some thing's I read on various forums.
Here are a couple of photos:
The rear fluid was pretty dark and a tad thick, like a runny milk shake.
It was a very dark grey, not black as it looks in the photo.
The front fluid was a lot cleaner, as it flowed out it was still a little transparent.
I swirled around the oil in the cups to make sure there were no metal flakes floating around.
Since there were no flakes in the oil, I did not remove the diff. covers this time around. Next change I'll do that most likely.
All in all....a very easy job and glad I finally did it!