Originally Posted by NolanP

So I keep playing with the gear diff. No matter what I do it seems gritty.

I built it according the specs in the manual. I filled it using 1000 cst. It's not like this is my first gear diff I've built either. It just doesn't spin freely. Any tips? Something I should check? When the diff is apart Both haves spin as smooth as butter. When I put it together it is gritty. I have dumped the rear diff and re-filled it.