^^^^This is bad advice. I've changed rear diff fluid on many Ford LS axles and the lubes that come with FM usually won't keep the axle from chattering.
Any opinions on Valvoline vs Mobil 1 LS gear oil?
The Valvoline is about 13.00/qt and the Mobile 1 is 20.00/qt.
I don't care about 20.00 difference in price for 3 qts if the Mobil 1 is a better product, but also don't want to waste money if there is no difference.
Originally Posted by Fitz98
Any opinions on Valvoline vs Mobil 1 LS gear oil?
The Valvoline is about 13.00/qt and the Mobile 1 is 20.00/qt.
I don't care about 20.00 difference in price for 3 qts if the Mobil 1 is a better product, but also don't want to waste money if there is no difference.
What I posted in another thread … looks like roughly half is PAO/esters and half Grp3.
Appears some lab work went into that cocktail
Just wanted to add one other thing to consider if you are doing this work inside a garage. Make sure you leave enough room between the wheel that you are pulling the axle out of and the wall or any other item that may prevent the axle from pulling out all of the way!
I did my 2003 F150 in my garage and hadn't even considered that. I was very lucky when I removed my axle and found I had just enough room to actually take it out completely.
The rear seals I got were pre-greased, but not very well.
Should all the spaces be filled with grease?
What type of grease would I use to lube up these seals. There seems to be many types of grease available.