Originally Posted by ttsquirrel
In the link you provided, they still use diff oil. You and yogi are not using any diff oil, just grease or green tire slime? Really, the green tire slime? From the aer
osol or the pump? If that's the case I'm going to disassemble both diff and just use grease...thanks for the quick replies...TTS
The grease or green slime that others refer to is put on the seals, both the 2 small o ring seals and the larger center seal.
The reason for the grease on the seals is that it helps to form a more leak proof seal, and provide lubrication for the 2 smaller o ring seals on the out drives. Clean & coat all the seals completely with grease before you place them back in again.
I prefer the 3 racing anti wear grease, but any other grease will do as long as it's safe to use on rubber. (I also use yeah racing "hobby grease")
Another crucial step that must be taken is screwing the 4 small screws into the larger side of the diff body first before you assemble anything. This will make the plastic rise up a little around the screw holes, after that remove the screws and sand down the "bumps" that have formed around the holes.
Doing this will give that side of the diff a flat surface to press against the center seal when you screw the diff together.
Also - don't over fill the diff. when putting the oil into the diff, only fill it so the oil just comes over the top of the cross pins in the diff assembly.
If you fill the diff completely with oil it will be too much and will leak out.
Then when you screw the diff together a small amount of grease will squeeze out from under the 4 screws, this also helps to seal the diff and just wipe the excess away when you have tightened the screws up. Make sure you don't over tighten the screws as this will make the diff bind and be inconsistent.
Hope this helps.
p.s. For the front diff use the thicker diff oil that comes in the kit, and for the rear diff use the left over thinner oil that is used in the shocks. If you use the thick diff oil in the read diff the car will be very hard to drive as it will want to over steer everywhere.