Only one other thing that Giorgi didn't mention which helped mine, I moved the rear hub forward. My suspension was dialed in the strait with the ruts and bumps and jumped great. So I didn't want to mess with it too much. I moved up the rear hubs and I'm using 3K rear diff oil and it hooks up. Try one thing at a time though and like Giorgi said, try the diff oil last. Espesially if you are running on a ruff and/or real loose track.