Originally Posted by
Hoese37
Never sanded mine. No issues in 3 Tekno vehicles over 3 years.
For some reason, when freshly built or rebuilt, the center Diff will splatter oil out for the first 1-2 runs. Then it will stop. Mine & my buddy's both did this. You'll see small amounts of oil (think its leaking) then it will stop. Not sure why... But I wouldn't be too alarmed. Wait it out....
If its STILL leaking after 2-3 runs. OR if it's leaking A LOT of fluid then you may have an issue. Make sure you put green slime on the gasket. Make sure you seat the gasket all the way down with no creases. And make sure the holes are lined up. You can use oil, slime, grease, or K&N filter seal grease.
Sanding the face may help a bit if it's necessary. There may be slight defects in the plastic that need smoothed out.